In a group of 20 students 25% wear glasses how many do not wear glasses? (percentage wise)

The length of a rectangle is 5 cm more than twice it's width, the perimeter of the rectangle is 34cm, find the length and width of the rectangle

About 14% of the population of a large country is math phobic. if two people are randomly selected, what is the probability both are math phobic? what is the probability at least one is math phobic

How do i calculate the probability of tossing a coin 20 times and getting heads twice?

A ball is hit vertically into the air using a paddle at a speed of 32 ft/sec. The expression - 16t^2 + 32t give the ball's height after t seconds. Factor this expression.

Consider the graph of the quadratic function y = - 2 (x + 2) 2 - 1 with no real zeros.

Determine the 22nd term in the following arithmetic sequence: 3, 7, 11, 15 ...

U (x) = 4x+5, w (x) = - x+1 Find the value of w (u (5))

Solve 4 sec sqrd x = 8

Which set of sides makes a triangle

How do you write twenty four and sixty nine hundredths in expanded notation