Chelsea sold half of her comic books and then bought 20 more. she now has 50. With how many did she begin?

Brett weighed 72 kilograms before signing up for football. After changing his diet and lifting weights almost daily, he increased his weight by half his starting weight. How much does he weigh now? A) 98 kg B) 108 kg C) 126 kg D) 144 kg

A fair coin is tossed 100,000 times. the number of heads is recorded. what is the probability that there are between 49,800 and 50,200 heads?

Which of the following expressions are equivalent to - 4 + (4+5)

Solve the equation V - E + F = 2 for E

Enguun earns $17 per hour tutoring student athletes at Brooklyn University. a) If Enguun tutored for 12 hours this month, how much money did she earn this month? b) If Enguun tutored for 19.

Probability that Garrick is certified = 25 Probability that Molly has not had an accident = 71.87 Probability that Ryan is both certified and has never had an accident =

Joyce lost 26 lbs on her diet. During vacation she gained 4 lbs. How much was her overall loss?

Dara has 12 red couners. She has 7 more red counters than yellow counters. How many yellow counters does dara have?

If f (x) = 10x and g (x) = 0.5x + 1, find g (f (5)).

it takes four trips around the track to make a mile Jack paddled his bike around the track 24 times it took him 30 minutes how many miles per hour was Jack pedaling