Find two numbers whose sum is 10 for which the sum of their squares is a maximum

Alphabets = integers

Is 10011 divisible by 3 and 9

Adding negative numbers 9 + ( - 7) =

If a is perpendicular to b b is perpendicular to c, c is parallel to d, and d is perpendicular to e, which is NOT true? I put it like that in hopes that it will be more understandable.

Solve - 3 (2 - 5w) = 9w + 66 for w.

Why shouldn't classes overlap when summarizing continuous data in a frequency or relative frequency distribution?

Write a fraction that is less than 5/6 and has a denominator of 8

What expression can be used to find total discount of 30%

Assume that x is a char variable has been declared and already given a value. Write an expression whose value is true if and only if x is an hexadecimal (Base 16) digit (0-9 plus A-F or a-f).

Suppose you deposit $600 in a bank account with a simple interest rate of 2.5 %. You want to keep your deposit in the bank long enough to earn at least $120 in interest.