I solved it and got 4(a+6)
What do you think?
Answer:
96
Step-by-step: the formula is base × height . 8×12=96
Rate = D/T
Time = D/R
Distance = T*R
2x+18+5x-9
2x+5x18-9
<u>7</u><u>x</u>+<u>9</u>
7. 7
x= 1.4
hope it helps