Find the solution to the system of equations using a graph. 21x + 7y = 42

-5x + 5y = 10

Express your solution as an ordered pair with no spaces:

Ateacher noticed 5/8 of the students were wearing either blue shorts or white shorts. write two different ways this could be done.

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels

Will mark the brainliest. paula makes stained-glass windows and sells them to boutique stores. if her costs total $12,000 per year plus $4 per window for the frame. how many windows must she produce to earn a profit of at least $48,000 in one year if she sells the windows for $28 each?