A^3
a to the power of three
Answer
27 days
Step-by-step explanation:
father= 45 days
oldest son + father=27 days
youngest + father= 36 days
45-27=18
45-36=9
18+9=27
so it would take 27 days for both sons to complete the house
18 days=oldest son
9 days =youngest son
Basically you multiply like normal and then add in the decimal point (to figure out where it goes count how many numbers are behind the decimal (in this case 2) and then count that many places from the right into your answer and that's where it goes). So here 374 x22 =8228 but when you add in the decimal you get 82.28 :)
PEMDAS
do parentheses first
4 x 10=40
40 x 10=400
x < −8/21
if you need help with explanations of the equations, "mathpapa" is something to look up. It's a algebra calculator that explains the step by step process