Simplify (0.09)2 and give your answer correct to 4 significant figures

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)