How do I factor y^2-16

A triangle has the length of 6cm and height of 8cm. The area of the rectangle is 5 times the area of the triangle. The rectangle has the length of 12cm. Work out what the width is.

4.567 trillion meter to gigameters

Kathy's internet company charges a connection fee of 0.21 cents for each call and 0.06 cents per minute. In February Kathy made a total of 50 calls. She was charged 40.50.

At a cookout, Mrs. Crawford makes two thirds lb of chickennbsp for each guest. Express the relationship between the number of guests x and the number of pounds of chicken y with an equation.

Find the discrimant of 7x^2+3x+9=0

Freddy is 4 years older than 8 times his grandson age the sum of their ages is greater than 67 What is the youngest age Freddy's grandson can be

What is the product of the expression? (a-3b) (2a+2b)

Graph f (x) = 2x^2+32x+126

Solve the inequality. Graph the solution. w+6≤-3

Round 9.862 to the tens place