Expand.

If necessary, combine like terms.

(x+3) (x - 3) = ?

Explain why triangles are often used to build bridges, roofs, buildings, and other structures. Which properties of a triangle make it a desirable geometric shape for these applications? Which type of triangle is best?

Martina walked 3/4 of a mile in 2/5 of an hour. At this rate, how far can Martina walk in one hour?

In the citation, davis v. baugh industrial contractors, inc. 159 wash. 2d 413, 150 p. 3d 545 (2007) what does the "2d." represent

Robert stands atop a 1,380-foot hill. He climbs down, reaching the bottom of the hill in 30 minutes. What is Robert's average rate of elevation change in feet per minute?

2x+2/y=4w+2 solve for x

If a company is considering the purchase of a parcel of land that was acquired by the seller for $93,000 is offered for sale at $166,000, is assessed for tax purposes at $103,000, is recognized by the purchaser as easily being worth $156,000, and is

P = ? 4p + 2 = 3p - 7

Larry mixed 15 grams of salt with 210 grams of a 5% salt solution in water. What is the percent of salt in his new solution?

What is the value of x if 120 degrees are diagonal and 6x horizontally

find the sum and product of the zeros of the quadratic polynomial are - 1/2 and - 3. what is the quadratic equation