Factor this quadratic expression:

a2 - 2a - 15

In 2011 a country's federal receipts (money taken in) totaled $2.36trillion. In 2013, total federal receipts were $2.68 trillion.

To finance her community college education, Sarah takes out a loan for $4300. After a year Sarah decides to pay off the interest, which is 7 % of $4300. How much will she pay? Sarah will pay $ nothing.

A footbal pitch has a perimeter of 350 metres. a player jogs round the pitch 12 times. hw far does he run altogether in kilometeres

The path of a model rocket can be represented by the equation h (t) = - t2+15t+16, where h (t) is the height, in feet, of the rocket at any given time, t. what is the height of the model rocket after 3 seconds from launch?

Danny was was 184.56 pounds last week. He is on a special weight gain program with a trainer. What was his average daily gain?

A woman plans to use one fourth of a 48 foot x 100 foot rectangular backyard to plant garden. Find the perimeter of the garden if the length is 40 feet greater than the width

Bryan played two baseball games last weekend. He got 7 hits in all. He had 3 hits in the first game. How many hits did he get in the second game?

True or false? it is possible to circumscribe a circle about the quadrilateral below.

A real estate agent sells a house for 87,000. She gets a commission of 6% on a sale. What is her commission

The function f (x) varies directly with x, and f (x) = 12 when x=8 which answer is the direct linear equation? a) f (x) = 8x b) f (x) = 12x c) f (x) = 2/3x d) f (x) = 3/2x