{ax+3y=10 kx−3y=6 In the system of equations above, a and k are constants. If the solution to the system is (2,1), what is the value of a+k ?

Sasha invests $1000 that earns 8% interest compounded annually. write a function that describes the value, v, of the investment after t years.

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?

Given: pb tangent pv, pu secants if m = 80° and m = 30°, then m 3 = 55 40 25