Anyone can help me abit in Snapask (A tutor app) ? Redeem my referral code (You get 1 question for free and I get one also! :D) CODE: RAKWUQ

How many of the 250 grandparents in the population would you expect to prefer online shopping with merchant a? merchant a: 4 merchant b: 6 merchant c: 2 merchant d: 3 other: 5 none: 5 answer choices: a.about 4 b.about 8 c.about 40 d.about 21

You have 138.72 in your saving account u take out 45.23 and 18.00 you deposit 75.85 into your account

How many quarts of a 50% solution of acid must be added to 20 quarts of a 20% solution of acid in order to get a 40% solution of acid?