Which method(s) can be used to solve a system of equations? select all that apply.
distributing
graphing
substitution
formulas
addition
modeling

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

Write an equation for the function that includes the points (2,100)and (3,100)

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)