Manu gave the cashier $ 80 to pay for 5 pairs of doggy collars. The cashier gave him $20.50 in change. Each doggy collar cost the same amount. What is the cost in dollars and cents for each doggy collar?

Tracy solved the following problem. which of the statements is true? 9 ÷ 3 + 6 × 2 3 + 6 × 2 9 × 2 18 her answer is correct. her answer is incorrect. she should have multiplied before dividing. her answer is incorrect. she should have multiplied before adding. her answer is incorrect. she should have added before dividing.

In factoring by grouping, what would you have for step 3 for the following? step 1: x^3 +5x^2 +4x+20 step 2: x^2 (x+5)+4(x+5) step 3: ?

What are the coordinates of the point that is 1/3 of the way from a to b? a (2,-3) b (2,6)