The diagram above shows the quadrant OPQ centred at O. ORST is a square.
Given OP = 10 cm and OR = 7 cm.
Calculate the area of the shaded region, in cm². State the answer in pi.​

Solving algebraic equations 2m+3=11

Will mark the brainliest.paula makes stained-glass windows and sells them to boutique stores. if her costs total $12,000 per year plus $4 per window for the frame. how many windows must she produce to earn a profit of at least $48,000 in one year if she sells the windows for $28 each?

In each diagram, line p is parallel to line f, and line t intersects lines p and f. based on the diagram, what is the value of x? ( provide explanation)