Task 1 Q1. There are 125 students in the dining hall. (a) If 86 are boys, how many of them are girls?

(b) If there are x boys, how many of them are girls?

Q2. The perimeter of a room is 16.8 cm. If the width is (x-3) cm, find its length in terms of x.

Q3.Simplify (i) 2x(3x - 1) + 7(x² + 3) (ii) 6(a² - 2a -- 1) – 3a(2a – 5) (iii) 4x(3x - 2y)+5y(x + 3y) – 7xy

Task 2

Q1. Find the coefficient of x² and x in the expression: (x–5)² – (4–3x)².

Q2.Simplify (i) 6b(b – 3) + b(b – 4) – 5b(b – 7) (ii) 8xy – 2[5xy - (xy - 6) (iii) 9y + [7y – 4(2y + 3)

Q3. The perimeter of a rectangle is 14m and the length is x m. Express the breadth of the rectangle in terms of x.

Task 3.

Q1. Evaluate ab (ç²– bd²), given that a = 2, b= -4 ,c= 5 and d =3.

Q2.If a= -3, b=2, c=1 and d = -4, find the values of (c²–b²) ÷(a²+ d²)

Q3. If x =-7 and y= -3, calculate the values of [(x–y)÷(x²+y²)]².3

WILL MARK BRAINLIEST