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Footer Text 1) (30 marks) Simplify the following expressions: a) 3350 x (1+12002) + (1+ 1250)3= b) -2(5a-3ab +3c) + 3(-2a -4ab + 2c) - 4(-2a + ab-c) = 2) (30 marks) Arman is scheduled to work 42 hours per week for the whole year. He is receiving $20.5 per hour for the first 35 hours and "time and a half" for the rest of his work per week. Arman is also receiving 1.5% on total sales as commissions on his annual total sales of $85000. Calculate Arman's biweekly salary considering his biweekly regular hours, biweekly over time hours and his annual commission converted into biweekly amount. 3) Solve the following systems of equations using elimination or substitution method. Double check your solution with graphing method using "desmos" a) (20marks) (2/3) x + (4/5) y =6 (2/5) x = (2/3) y =3 b) (20marks) Adam has bought 20 Kitkat and Smarties packs for $55. Find how many KitKats and how many Smarties are purchased if each Kitkat is $2.5 and each Smarties is $3.5