Expand and simplify: (2x - 5y) (x + 3y)

2x2 - xy - 15y2

2x 2 - 2xy - 15y2

2x2 + xy - 15y2

2x2 + 2xy - 15y2

Suppose the heaviest lineman had weighed 341 pounds instead of 321 pounds how would this change affect the mean and the median what property of measures of center does this illustrate

What is 3 1/2 miles - 3,520 yards? (And put your answer in miles)

Mr. Dean has a even number of cats and an odd numbers of dog. Show how many dogs and cats he might have

A runner moves 132m in 18s. How fast is the runner running?

What is your value of f (10)

If a+b=12 and a-b = 8, what is the value of a^2+b^2?

In which quadrant is (1/2, - 1.8) ?

Is 3/5 terminating number

Solve for x of the triangle x^2=4x9

Solve the following equation for m - 2m+7=11