Express the product of 0.21 and 0.34 in standard form

Given that log 2 = 0.3010, log 7 = 0.8451. Evaluate log 112.

The 3rd term of an arithmetic progression is -9 and the 7th term is -29. Find the 10th term of the progression

At what rate will the interest on ₦400 increases to ₦24 in 3 years reckoning in simple interest?

Find r, if 6r78 = 5119

If x ∗ ∗ y = x + y2, find the value of (2 ∗ ∗ 3)∗ ∗ 5

If p : q = 23 2 3 : 56 5 6 and q : r = 34 3 4 : 12 1 2 , find p : q : r

Simplify (1681)14÷(916)−12

Solve the inequality -6(x + 3) ≤ ≤ 4(x - 2)