Write a paragraph proof for the following conjecture: Given: m21 + m22 = m24
Prove: m23 + m21 + m22 = 180°

Abox of chocolates costs $7. which equation relates the number of boxes sold (x) and total cost of the boxes sold (y)?

Liz had 140 pens and inna had 100 pens. after inna gave liz some pens, liz had 3 times as many pens as inna. how many pens did inna give liz?

5x−4≥12 or 12x+5≤−4 can you with this problem