Students in the student council are selling candy bars. They earn $0.75 on each candy bar they sell. Their goal is to earn at least $320. How many candy bars must they sell to reach their goal?

What is the measure of ac? 5 units 13 units 26 units 39 units

How much dextrose 70% must be mixed with dextrose 5% to prepare 1,000 ml of dextrose 20%?

Aroulette wheel has 38 slots in which the ball can land. two of the slots are green, 18 are red, and 18 are black. the ball is equally likely to land in any slot. the roulette wheel is going to be spun twice, and the outcomes of the two spins are independent.the probability that it lands one time on red and another time on black in any order is(a) 0.5 (b) 0.25 (c) 0.4488 (d) 0.2244