Yen bought 4 pounds of cherries.

which expression could be used to figure out how many ounces of cherries yen bought?
(1 lb = 16 oz)

a.
16 × 4

b.
16 ÷ 4

c.
16 + 4

d.
16 – 4

Naomi’s parents want to have 50,000, saved for her college education, if they invest 20000 today and earn 7% interest compound annually, about how long will it take them to save 50 thousand

Asurvey of 45 teens found that they spent an average of 25.6 hours per week in front of a screen (television, computer, tablet, phone, based on the survey’s sample mean, which value could be the population mean? 2.3 hours 27.4 hours 75.3 hours 41.5 hours

Ingredient c: 1/4 cup for 2/3 serving or ingredient d: 1/3 cup for 3/4 serving which unit rate is smaller