Question

Answer to become brainiest

Answer 1

Answer:

a) Substitute a and b into the equation 3a+4b. Given the values a=17 and b=9.

So it will be 3(17)+4(9)=87.

b)  Using this formula V=u+at

V=3+1.5×7

V=3+10.5

V=13.5 m/s

Step-by-step explanation:

Hope this helped.