Justify each step.

15. 2x - 5 = - 20

2x = - 15

x=_15

Peters mobile phone bill is £29.43 exclusive of vat. if the vat rate is 20% how much vat must he pay?

There are three forward players, two defensemen, and one goalie on a hockey team. What is the ratio, in simplest form, of forward players to the total number on a team?

if you put a dime in one hand and a penny in the other hand how do you detemine which hand is holding the penny

Complete the solution of the equation. Find the value of y when x equals 0. -7x + 3y = 30

What is the volume of a right circular cylinder with a radius of 3 in. and a height of 10 in.?

R - 5/9 = 2/9 what does r equal

Solve for x x+4y=6,3y=12

How do I solve 6x+3=18. And 5 (4x-5) = 155

State which of the following sets of ordered pairs represent a function. Set A: (5, 2), (4, 3), (3, 4), (2, 5) Set B: (-1, - 6), (0, 2), (1, 2), (3, 6) Set C: (2, 1), (4, 2), (2, 3), (8, 4) a. Set C b. Set B c. Set A d. Set A and Set B

Given the flag of djibouti with length 20 cm and breadth 12 cm. The red star take up 5% of the area of the white triangle. The white triangle's tip is in the center of the flag. Find the area of the red star?