Answer:
Step-by-step explanation:
5 + 2x = 65
5 + 2x -5 = 65 - 5
2x = 60
= 
x = 30
The correct answer would be 6x^5-8x^3-8x
Answer:
80in3
Step-by-step explanation:
12 x 4 = 48
48 / 2 = 24
24 x 10 =240
240 / 3 = 80
So your answer is 80in3
Answer:
5 five-dollar coins and 3 ten-dollar coins
Step-by-step explanation:
10x3=30
5x5=25
30+25=55