What expression represents the profit, and what is the profit if 240 cell phones are sold? 40x – 30; $2,400 40x – 30; $9,570 70x + 50; $16, 850 70x + 50; $28,800

Atemperature of 1.64◦f corresponds to answer in units of ◦c.

Hell . what are the solutions to `10x^2 - 38x - 8 = 0`? is this when i find the factors and use the numbers within the factors to determine the zeros? i hope that made sense lol

William invested $5000 in an account that earns 3.8% interest, compounded annually. the formula for compound interest is a(t) = p(1 + i)t. how much did william have in the account after 6 years? (apex)