Please I really need help! I will mark you as brainliest if the answer is correct!

Given:

PQRS is a rectangle and XY is parallel to PS.

RY = 9 cm, QR = a cm and YS = b cm

Area of PQRS = 84 cm²

Area of PXYS = 21 cm²

To find:

The value of a and b.

Solution:

RS = 9 + b

Area of rectangle = length × width

Area of PQRS = QR × RY

QR × RS = 84

----------- (1)

Area of PXYS = XY × PS

XY × PS = 21

(since QR = XY)

----------- (2)

Substitute (2) in (1).

Subtract 21 from both sides, we get

Divide by 9 on both sides, we get

a = 7

Substitute a = 7 in (2).

Divide by 7 on both sides, we get

b = 3

The value of a is 7 cm and b is 3 cm.

its a, i had the same answer, its from study island right

step-by-step explanation:

1 ?

step-by-step explanation:

u said 1+1+1+1+1+1+1+1+1+1+1+1*0 so ur adding 1 but then multiplying by 0 so its 0 but then u said 1*0+1 so now ur adding 1 so the answer is juan ?

~leah