Asixth grader weighs 90 pounds, which is 120% of what he weighed in fourth grade. how much did he weigh in fourth grade?

Which statement most accurately describe why the division property of exponents does not apply to the expression (-8)^2/(-3)^4

Ernest is purchasing a $175,000 home with a 30-year mortgage. he will make a $15,000 down payment. use the table below to find his monthly pmi payment.

Acollection of coins has value of 64 cents. there are two more nickels than dimes and three times as many pennies as dimes in this collection. how many of each kind of coin are in the collection?