John sells pushchairs on eBay. He buys the pushchair from China at a wholesale price of £350 and resells them for £450. He also needs to store them before they are buying dispatched so he rented a garage space for £800 a month a. What is the equation to calculate the profit?​

Which of the statements about the graph of the function y = 2x are true? check all of the boxes that apply. the domain is all real numbers x because the exponent of 2 can be any real number when the x-values increases by 1 unit, the y-value multiplies by 2. the y-intercept is (0, 1). the graph never goes below the x-axis because powers of 2 are never negative. the range is all real numbers.

Liz had 140 pens and inna had 100 pens. after inna gave liz some pens, liz had 3 times as many pens as inna. how many pens did inna give liz?

The roots of the function f(x) = x2 – 2x – 3 are shown. what is the missing number?