Last year, kareem invested his money in two purchases. He purchased a certificate of deposit for $4000 that paid 7% interest per year and purchased $1000 in corporate bonds paying 4% interest per year

John makes $10.50 pers hour what expression represens how much he will make if he works h hours

How do i multiply two digit numbers

Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of