Can someone please do this I NEED HELP The last one is 4y+ 3x+ 2z- 8

Solve the following inequalities and show the solution on a number line. 3/4 (2x-7) ≤ 5

Can someone factor this fully? my friend and i have two different answers and i would like to know if either of them is right. you in advance. a^2 - b^2 + 25 + 10a

If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.