Every week for 20 weeks, kathy earned $15 for mowing lawns and $35 for delivering newspapers. at the end of 20 weeks, she stopped mowing lawns and delivering newspapers and spent $300. she didn't earn or spend any money besides what is described here. write a numerical expression with parentheses for the amount of money kathy has left.

the equivalent expression are always the hardest ones but you look at the gcf also

step-by-step explanation:

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.