The area of a circle of radius 4cm is equal to (Take π = 3.142 )

If three staff of Chukwudi and Sons Ltd. agreed to share their salary arrears in the ration of their ages, which are 18 years, 20 years, 22 years respectivel...

In a town of 6250 inhabitants, there were 62 births during 1984. Find the percentage birth rate.

Simplify log101.5 + 3 log102 − log100.3

Factorize x2 + 9x + 20

X and Y are two sets such that nX = 15, nY = 12 and n{X ∩ Y} = 7. Find n{X ∪ Y}.

Find the x and y intercepts of the graph of 3x - z ≤ ≤ 9

Simplify 1¼ ÷ (2 ÷ ¼ of 28)

Find the total surface area of a cylinder of base radius 5cm and length 7cm (π = 3.14)