Solve equations below.
a. 2x + y = 5
-2x – 7y = 13

b. 4x + 5y = -5
x + 5y = 10

c. 4x =+ y = 14
x – 2y = 8

d. -x + 5y = 3
-3x + 15y = 9

e. y = -5x + 10
5x + y = 3

Why do interests rates on loans to be lower in a weak economy than in a strong one

The manufacturer of a new product developed the following expression to predict the monthly profit, in thousands of dollars, from sales of the productwhen it is sold at a unit price of x dollars.-0.5x^2 + 22x - 224what is represented by the zero(s) of the expression? a.the profit when the unit price is equal to 0b.the unit price(s) when the profit is equal to 0c.the profit when the unit price is greatestd.the unit price(s) when profit is greatest

25 ! the line of best fit is h = 5a + 86. predict the height at age 16. show your work.