2t²3(ts) fort=5ands=2

a²+19fora=2

14d+f³

/f

ford=2andf=4

1. In a lab, the temperature of a fluid was reduced6F per hour for 12 hours. What signed number represents the total change in temperature?

Divide.

3a/

2

a²

/4

Express the amount of the square region that is shaded using a reduced fraction and a decimal.

10 rows and 10 columns form a 10 by 10 grid with shaded and unshaded cells. From left to right, the first seven columns are completely shaded. In the eighth column, there is one unshaded cell, the rest of the column is shaded. The ninth and tenth columns are completely unshaded.

Write the percent as a decimal. 17.7%

Write the percent as a decimal. 0.06%

A swimmer was able to complete18laps before a shoulder injury forced him to stop. This was only 20% of a typical workout. How many laps does he normally complete during a workout?

Find the amount of a 15% tip on a meal costing$23.40.

(x⁴)²(x⁵)^{5 ?}

Perform the operation. (Simplify your answer completely.)

(3x4)(4x+3)