Simplify the expression. 3.7z to the power of 2+7.2+9z-1.2-2z+z to the power of 2. Please help

Solve each quadratic equation by factoring and using the zero product property. 10x + 6 = -2x^2 -2

Solve this problem! extra ! 3025/5.5 = a/90.75

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.