Find the center and the radius of the circle. (x-2)^2+(y+3)^2=70

Given the equation f(x)=a(b)x where the initial value is 40 and the growth rate is 20% what is f(4)

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

I’m really confused and need your assist me with this question i’ve never been taught