hint pls need a full colculation with formulas

Qaisara Qistina Fitness Gym operates a chain of fitness centers in the Taman Melawati, Kuala Lumpur area. The firm's controller is accumulating data to be used in preparing its annual profit plan for the coming year. The cost behavior pattern of the firm's equipment maintenance costs must be determined. The accounting staff has suggested the use of an equation, in the form of Y = a + bx, for maintenance costs. Data regarding the maintenance hours and costs for last year are as follows: Bulan/Month Jam Penyelenggaraan/ Kos Hours of Maintenance Service Penyelenggaraan/Maintenance Costs (RM) 520 4,470 Januari/January Februari February Mac/March 490 4,260 300 2,820 500 4,350 April/April Mei/May Jun/June 310 2,960 480 4,200 320 3,000 Julai/July Ogos/August September/September 400 3,600 470 4,050 Oktober/October 350 3,300 November/November 340 3,160 Disember/December 320 3,030 Disember/December 320 3,030 Jumlah/Total 4,800 43,200 Purata/Average 400 3,600 Dikehendaki / Required: 1. Dengan menggunakan kaedah anggaran kos rendah tinggi, anggarkan kos tingkah laku bagi penyelenggaraan yang dilakukan oleh Qaisara Qistina Fitness Gym. Terangkan corak tingkah laku kos dalam bentuk persamaan. Using the high-low method of cost estimation, estimate the behavior of the maintenance costs incurred by Qaisara Qistina Fitness Gym. Express the cost behaviour pattern in equation form. (4 markah/marks) 1. Dengan menggunakan jawapan anda di soalan (0), apakah komponen pembolehubah kos penyelenggaraan? Using your answer to question (), what is the variable component of the maintenance cost? (1 markah/marks Kirakan kos penyelenggaraan yang diramalkan pada 590 jam aktiviti. Compute the predicted maintenance cost at 590 hours of activity. 1. Kirakan kos berubah setiap sejam dan kos tetap setiap jam pada 600 jam aktiviti. Terangkan mengapa kos tetap sejam boleh mengelirukan. Compute the variable cost per hour and the fixed cost per hour at 600 hours of activity. Explain why the fixed cost per hour could be misleading. (3 markah / marks) 1. Lukiskan graf mudah dan berikan contoh bagi setiap jenis corak kos tingkah laku berikut: Draw a simple graph and give example of each of the following types of cost behavior patterns: Berubah/ Variable Berubah bertingkat/ Step-variable Tetap bertingkat/ Step-fixed Separa berubah/ Semi variable Curvilinear/ Curvilinear (5 markah / marks)