18/81 = 10/X
cross multiply
18*X =81*10
18x =810
divide both side by the coefficient of X which is 18
18x /18 = 810 /18
X= 45
Answer: 4.5 looks the most reasonable to me.
Step-by-step explanation:
A does
x is going up 2
y is going up 1
this means the slope is 1/2
the y intercept is 1 because when x = 0 y = 1
Step-by-step explanation:
v=l×b×h
300cm²=4×3x×x
300÷12=x²
x=5
3x=3×5=15
a=15×5