find the value of x in the given figure.
a) 44°
b) 40°
c) 36°
d) 32°

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

Find the roots of the polynomial function f(x) = x^3 + 2x^2 + x

At the beginning of 1974/75,2 years a man invested #2000 in a bank at 12.5% compound interest, if it degree #650 at the end of each two years to pay his son's school fees, after payment of interest to pay his son's school fees, how much did he have left at the beginning of the 1978/79 school year?