Answer:
Step-by-step explanation:
hello :
x3^-8=0 means : x3^=8
but : 8 = 2^3
so : x3^= 2^3
x=2
36
300cm square
base (b)=20cm
height (h)=30cm
now,
area=1\2*b*h
=1\2*20*30
=300cm square
Each friend earned 10 dollars. 50÷5=10
