The point (7, 8) is the solution of which of the following systems of equations? 1. 8x - y = 48
9x + 10y = 142

2. 9x - y = 55
8x + 10y = 140

3. x-6y=-41
8x + 9y = 127

4. x-7y=-49
10x + 9y = 142

Ricky takes out a $31,800 student loan to pay his expenses while he is in college. after graduation, he will begin making payments of $190.66 per month for the next 30 years to pay off the loan. how much more will ricky end up paying for the loan than the original value of $31,800? ricky will end up paying $ more than he borrowed to pay off the loan.

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?

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