C) Diagram 7 shows a right-angled triangle PQR. Express the square of the length PR in terms of x and a. Give answer in simplest form.
[3 mar
Р
(x - 2a) cm
R
(x - a) cm
Diagram 7​

The class wants to raise a total of $750.if they receive a profit of $1.25 from each candybar sold, how many bars must they sell to reachtheir goal

What is the solution to the system of equations? (–2, –8) (–1, –5) (0, –2) (2, 4)

He trapezoid is composed of a rectangle and two triangles. what is the area of the rectangle? what is the total area of the triangles? what is the area of the trapezoid? ? a) 42 cm2; 27 cm2; 69 cm 2 b) 54 cm2; 27 cm2; 81 cm 2 c) 108 cm2; 27 cm2; 135 cm 2 d) 108 cm2; 13.5 cm2; 121.5 cm 2