Greg is saving up his money to buy a new phone. The amount of money he has after any given week (w) can be given by the equation M = 90 + 15w. How many weeks will it take Greg to save up the $210 he needs to buy the phone?

5(-9w) put expression in distributive property

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

10 points? ? +++ me asap gabriella uses the current exchange rate to write the function, h(x), where x is the number of u.s. dollars and h(x) is the number of euros, the european union currency. she checks the rate and finds that h(100) = 7.5. which statement best describes what h(100) = 75 signifies? a) gabriella averages 7.5 u.s. dollars for every 100 euros. b) gabriella averages 100 u.s. dollars for every 25 euros. c) gabriella can exchange 75 u.s. dollars for 100 euros. d) gabriella can exchange 100 u.s. dollars for 75 euros.