Tell whether the ordered pair (3, 1) is a solution of the system of linear equations. x+y = 4
yes, it is a solution
2x + y = 7
no, it is not a solution

Will give brainliest sum of arithmetic series (sigma notation) find the numerical answer to the summation given below. (image shown below)

The revenue each season from tickets at the theme park is represented by t(c)=5x. the cost to pay the employees each season is represented by r(x)=(1.5)^x. examine the graph of the combined function for total profit and estimate the profit after four seasons

Reinel saves 30% of every pay check. his paycheck last week was 560$. how much did reniel save last week?