Ihave a question that i need answered quickly (it's late and my homework is due soon). i have a few algebra problems that say i need to write each fraction as a sum or difference. for example, 3n+5 over 7. can someone explain how to solve this?

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.

Find the maximum value of p= 4x + 5y subject to the following constraints :

I’m really confused and need your assist me with this question i’ve never been taught