He expression0.50a+0.65prepresents the total cost of a apples and p pears. if tonya bought 10 pears and spent a total of $10.00, how many apples did she buy?

Find the domain of the following expression: 1/(√x)-2

Atorch and a battery cost 2.50 altogether. the torch costs 1.50 more than the battery. what fraction of the total price is the torch? give your answer in its simplest form.

Find the power set of each of these sets, where a and b are distinct elements. a) {a} b) {a, b} c) {1, 2, 3, 4} show steps