I’m not sure how to do this. plz and show the work

3. 65x5= 325
she traveled 325 feet in 5 minutes
4. 3(6) +5 = 23
    6cube - 10 =206
5. area of the triangle is 1/2x base x height
so 1/2 x 15 x 10 = 75
7. they'll have 6 sections. 3/4 divided by 1/8 is 6

hope this helps :)

There is 240 red cars and there is 400 blue cars because 240/3=80 and 80*5=400