4:4,8 12 16 20 24 5:10 20 25 30 35 40 45
She would ride for 1.6 hours
F(x)=x/(3x+2)
f(a+h)=(a+h)/(3a+3h+2)
They didn’t distribute the -1 (which is the “-”) correctly into the numbers in the parentheses. After distributing correctly, step 1 should be
8a+3+5a-2a
Hope this helps :)
