Becky has some marbles
chris has two times as many marbles as becky
dan has seven more marbles than chris
they have a total of 57 marbles
dan says:
if i give some marbles to becky, each of us will have the same number of marbles"
is dan correct?

Idont understand math at all! : o( use this scenario to answer the remaining questions: brenton purchased a new bedroom set for $4,500.00. he lives in arizona and pays a 8.75% sales tax. if he made a 50% down payment and financed the rest, what amount did he finance? what is the total sales tax brenton will pay? enter your answer in currency format, round to the nearest cent. what was brenton's total amount financed? enter your answer in currency format, round to the nearest cent.

Evaluate the expression for the given value of the variable 7a - 4a for a =8

Each cookie sells for $0.50 sam spent $90 on baking supplies and each cookie cost $0.25 to make how many cookies does sam need to sell before making a profit formula: sales> cost