Simplify: 2(x+ 5y) + 3(2x – 3y)

Factorize:3x – 9xy -12z

Expand:5c (3a – 2b)

Calculate simple interest  on 450000 borrowed for 18months at 8% per annum.

Calculate the amount to be paid back on N450000 borrowed for 18months at 8% per annum.

If it takes a motorist 2hrs. 30minutes to move from one town to another that is 120km apart. What is his average speed?

Evaluate 2e³ ‒ 3f³ + g³, if e = 5, f = 3 , g = 2

Simplify: 6(3a ‒2) = 3(a + 5) + 3

A researcher has collected the following sample date: 5, 12, 6, 8, 5, 6, 7, 5, 12, 4. Determine the median.

What is the difference between the greatest3-digit even number and the smallest2 digit odd number?   ________

A stick has two ends. How many endshas 12¹/₂sticks

 If 47.6%of pupils in a class are boys, what percentage of the class are girls? _ ______________

Find the value of p – q + pq ,if p = –1 and q = –2

Evaluate: (2⁰ + 4^-1) × 2²

The successor of (9 –1 + 12 – 9) is _____.