Twelve of the 30 students in the class were boys if each students name is placed in the hat and one name is drawn what is the probability that it will be the name of a girl

f (x) = ax + b and g (x) = x-4, where a and b are constant. If fg (4) = 2 and gf (2) = 4, find the values of a and b.

What is 9.33 in fraction form

Sketch one cycle of the cosine function. y = 2 cos 2 theta

A cube has a surface area of 96 sq. in. What is the length of its side?

Tera is training for a bicycle race. Each week she rides a total distance greater then 10 kilometers and less than or equal to 30 kilometers.

A right triangle has legs that are 19 in. and 23 in. What is the area of the triangle

What equation results from completing the square and then factoring x2+4x=12

In two years the value of a car chnaged from 14,000 to 11,200 what is the percent of change

What is the difference 4 1/3 - (-2/3)

Elaine is painting a fence. she knows that she needs 1 gallon of paint for each 10 feet of fencing. The fencing will enclose a rectangular yard that is 3 yards long and 2 yards wide. how much paint does Elaine need?