Answer:
9. This is because you have to add 13 to -4, which gives you positive 9. Hope this helped!
100 free throws* (7 goals/ 10 free throws)= 70 goals.
If David attempts 100 free throws, he will be successful about 70 times~
Step-by-step explanation:

Answer:
Because the line is the shortest path between 2 points
I=PRT
P=present amount
R=rate
T=time
basically
20+interest<u /> is more than or equal to 400
20+I<u>></u>400
minus 20 both sides
I<u>></u>380
solve
P=20
R=3%=0.03
T=?
I=PRT
380<u><</u>I=PRT
380<u><</u>20(0.03)(T)
380<u><</u>0.6T
divide both sides by 0.6
633.33333<u><</u>T
633.33 years at least