For khan academy. Need help immediately. Explain if you can

Jane’s favorite fruit punch consists of pear, pineapple, and plum juices in the ratio 5: 2: 3. how many cups of pear juice should she use to make 20 cups of punch?

If m_b=mzd= 43, find mzc so that quadrilateral abcd is a parallelogram o 86 137 o 129 43 description

X^2/100+y^2/25=1 the length of the major axis is: a)5 b)10 c)20