7. suppose you earned 6t+2 dollars on monday and 9t-6 dollars on tuesday. what were your total earnings? simplify your answer a.) 15t-4 b.) 15t+8 c.) -3t-4 d) -3t + 8

Ineed in figuring out this problem.

Heather is writing a quadratic function that represents a parabola that touches but does not cross the x-axis at x = -6. which function could heather be writing? fx) = x2 + 36x + 12 = x2 - 36x - 12 f(x) = -x + 12x + 36 f(x) = -x? - 12x - 36

Campus rentals rents 2 and 3 bedrooms apartments for $700 ans $900 a month respectively. last month they had six vacant apartments and reported $4600 in lost rent. how many of each type of apartment were vacant?