2 pens cost £2.46

5 folders cost £5.70

Tom buys 20 pens and 20 folders

How much change does he get from a £50 note?

Enter numbers to evaluate - 13-23. -13-23 = - 13 + = Enter numbers to evaluate - 13 - (-23). -13 - (-23) = - 13 + =

Is a rectangle a regular polygon

A computer store has 75 printers of which 25 are laser printers and 50 are ink jet printers. if a group of 10 printers is chosen at random from the store, find the mean and variance of the number of ink jet printers.

Select the statement that correctly describes the expression below. 4ab (c+3)

Given that the acceleration vector is a (t) = (-4cos (2t),-4sin (2t), t) the initial velocity is v (0) = (1,0,1), and the initial position vector is r (0) = (1,1,1), compute: A. The velocity vector v (t) B. The position vector r (t)

A food truck sells salads for 6.50 each and drinks for 2.00 each. The food truck's revenue from selling a total of 209 salads and drinks in one day was 836.50. How many salads were sold that day

The sale of sweaters in a town changes with the temperature. If a statistical model predicts that daily sales (in dollars) are determined by the function s =

Add the numbers from 1 to 100 by following the same steps you used in 1.

The numbers of chocolate chips in 7 cookies are shown. 5,7,7,9,12,16,21 What is the mean number of chocolate chips for these 7 cookies?

The length of rectangular hall is 3 meters more than double of its breadth. If it's perimeter is 66 meters, what is its length?