A hollow sphere has a volume of kcm3 and a surface area of kcm2. Calculate the diameter of the sphere.

Find the nth term Un of the A.P., 11, 4, -3,....... .

If three children shares N10.50 among themselves in ratio 6:7:8, how much is the largest share?

lf 16/9 , x, 1, y are in Geometric Progression (GP), find the product of x and y.

If R = [2, 4, 6, 7] and S = [1, 2, 4, 8], then R∪S equal

Express 0.000834 in standard form

Find (101\(_2\))\(^2\), expressing the answer in base 2.

Given that log2a = log84, find a

By selling some crates of soft drinks for N600.00, a dealer makes a profit of 50%. How much did the dealer pay for the drinks?