Answer:
1. D
4. C
Explanation:
1. 4 basketballs / 10 footballs
divide both the numerator and denominator by 2, as both are multiples of 2, to get
2 basketballs/5 footballs
4. 112 = 35 % = 35/100
multiply all sides by 100 to get rid of the denominator
112 * 100 = 3500 % = 35 =
11200
divide by 35 to get to 100%
11200/35 = 100% = 1 = 320