Phil is cutting a triangular piece of tile. If the triangle is scalene, which set of numbers could represent the lengths of the sides? 1) {2,4,7}
2) {4,5,6}
3) {3,5,8}
4) {5,5,8}

If the diameter is 8 than the radius is 4 because 2r or 2*radius equals the diameter. 4*2=8. 8/2=4.

Look, when you want to do something like put it like x^2. x2 could mean x² or x₂. so to clear confusion, know the notation. to find the product multiply the x's and you get -8x and the y's and you get 6y. since it's all being multiplied it is just -8x6y, or answer a. although the better answer is -48xy(combining -8 and 6) because you should multiply constants whenever you can.