Solve the system of equations x+y=4x+y=4 and 3x+7y=323x+7y=32 by combining the equations.

240 seventh graders and two-thirds of the students participate in after-school activities how many students participate in after-school activities

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?

Deena is planting two rectangular gardens. one garden is 3.67 feet by 8.56 feet, and the other garden is 3.67 feet by 7.45 feet. which expression does not respresent the total area in square feet of the two gardens