Umm whats y2 when y is -9 and whats z2 when z is 0.7 im not that smart so ill be asking alot

Step-by-step explanation:

y = - 9

y^2 = (-9)^2 = 81

AND

z = 0.7

z^2 = (0.7)^2 = 0.49

Hope it helped

Hi there!

Be b brandon's amount
Let x be x's amount

x+b=150
x=2b+24
Sub x into the original equation and solve for b
2b+24+b=150
3b=150-24
3b=126
b=126/3
b=42
Sub b into the x= formula and solve
x=2(42)+24
x=84+24
x=108

Therefore X has $108 and Brandon has $42

Hope this helps!