Im having trouble with this question The ninth grade class has a ratio of 4 boys to 5 girls. If there are 630 students in the grade, how many are boys?

The measure of the acute angle of (x-3) (11x-3)

How to multiply x and y with only addition and subtraction?

Chose the best decimal representation for 8/11

Determine domain and range for f (x) = 72-12x

Marcus is selling lemonade and peanuts. Each cup of lemonade costs $0.75, and each bag of peanuts costs $0.35. On Saturday, Marcusvsold 5 more cups of lemonade than bags peanuts. He earned $7.05.

What are the domain and range of f (x) = (1/5) ^x

A department store sells a pair of shoes with an 87% markup. If the store bought the pair of shoes for $55.25, what is the selling price?

Which financial transaction represents money paid to a customer for keeping her money in a savings account and not withdrawing that money for a certain time period? loan interest ATM fee overdraft fee

There are 21 more green crayons than blue crayons. There are 14 blue crayons. How many green crayons are there?

What's 5x squared divide by 6