Answer:
−4.6+(−0.4)+(−7.2) =−4.6−(0.4+7.2)
Step-by-step explanation:
52488y²
first solve for 3³. then solve for 18²
3³=27
18²=324
27*324=8748
then multiply 8748 by 6y²
=52488y^2
12 inches
i think it may be 28
7x4+28