Find the circumference of the circle in terms of

a. 156 in
b. 39pi in
c. 1521pi in
d. 78pi in

Find the balance at the end of 4 years if 1000 is deposited at the rate of

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

X+y=-4 x-y=2 use elimination with adding and subtraction