Apply the rules of order of operations to solve the following problems. 52 – 6 × 7 = ? 108 ÷ 9 × 5 = ? (54 + 42) ÷ 12 =? 183 – [(12 + 7) × 4] = ?

Step-by-step explanation:

52 – 6 × 7 = 52-42 =10

108 ÷ 9 × 5 = 12×5=60

(54 + 42) ÷ 12 = 96÷12 =8

183 – [(12 + 7) × 4] = 183-(19×4) = 183-176=7

395.84

step-by-step explanation:

2πrh+2πr²

2 (pie)(radius)(height)+2(pie)(radius)^2

you have to find the same variables -3n - 5n so this would be -3n +(-5n) which equals -9n