The sum of a geometric series with a=2 r=3 and 4 terms is?

Solve: x² + 4x + 4 = 0 and identify the nature of roots

If x + 5 = 12 what is the value of x?

Using the BODMAS rule, solve: (8 + 2) × 2 − 6 = ?

A sum doubles itself in 8 years at simple interest. What is the rate?

What is 40% of three-quarters of 200?

The sum of an infinite geometric series with first term 1 and ratio 1/2 is?

What is 50% of 360?

What is the expansion of (a-b)²?

Using the BODMAS rule, solve: (4 + 3)² − (5 × 4) = ?

What is the inverse of the 2x2 matrix with rows [1 2] and [3 4]?