Line t passes through (4,5) and is perpendicular to the line shown on the coordinate grid. what is the equation of line t in standard form?

What is the solution to this system of equations? y= 2x - 3.5 x - 2y = -14

Olga bought a new skirt that cost $20. sales tax is 5%. how much did olga pay, including sales tax? 7.

Jackson earns $25 per hour as a tutor at the college library. he set a weekly spending budget of $130 each week and puts the remaining money in his savings account. how many hours must he work this week to have at least an extra $50 to put in his savings account