Answer:
5
Step-by-step explanation:
speed=d÷t.
s=1/4=1/20
cross multiply your equation
7/12 as a decimal is 0.583333333
or 0.59
Hope this helps ;)
I think 6 1/2,but I could be wrong so take that with a grain of salt
X(x+3)-7(x+3)
x2+3x-7x-21
x^2-4x-21
Approximately there are some of these on the we