Help on my homework questions please discrete math

nderstand where I went wrong. Regarding Work/Energy

r due to the pandemic I find it quite hard to do on my own. I need help with it.. Thanks!

My homework is about finding the area of a composite shape.

, so I just need the written work.

help me this is due today and I really just need help with it. It is math homework and quite easy my teacher says to I don't think you will have any trouble.

A. The answer is 3C/5. I only need help with part B. Thank you.

nates. My homework is on mathxl.com

I want someone on one help so I can understand the concept, I already have the answers to the problems because my teacher had already given me them.

ome help on this one problem on my short answer homework sheet.

d 5 cm wide. The area of the rectangle is 15cm squared. What is the height of the rectangle? The second question is on another rectangle, the height is a and the width is 3a. The perimeter is 24cm. What is the length of the shortest side. PLEASE HELP

is Imagine that in the voting for a certain​ award, 7 points are awarded for first​ place, 4 points for​ second, 3 points for​ third, 2 points for​ fourth, and 1 point for fifth. Suppose there were five candidates​ (A, B,​ C, D, and​ E) and 47 voters. When the points were​ tallied, A had 155 ​points, B had 173 ​points, C had 170 ​points, and D had 154 points. Find how many points E had and give the ranking of the candidates.​ (Hint: Each of the 47 ballots hands out a fixed number of points. Figure out how​ many, and take it from​ there.)

These problems on my math homework I need some help with. :)