Write the following in a shortened form

8×p×(q+2)=
a×b×(c+4)=
7×(4+3×x)=
(n+2)×(n+3)=
a×3×a×a=
5×(m-8)=
2×3×(a-5)=
4×(5×a-1)=
5×(3×y-2×z)=
(4p+1)×(4q-3)=

Aman steps out of a plane at a height of 4,000m above the ground falls 2,000m very quickly and then opens his parachute and slowly falls the remaining 2000m to the ground what height above the ground would be the best choice for a reference point

Pleasseee important quick note: enter your answer and show all the steps that you use to solve this problem in the space provided. use the circle graph shown below to answer the question. a pie chart labeled favorite sports to watch is divided into three portions. football represents 42 percent, baseball represents 33 percent, and soccer represents 25 percent. if 210 people said football was their favorite sport to watch, how many people were surveyed?

X+ 4y − z = −14 5x + 6y + 3z = 4 −2x + 7y + 2z = −17