Identify the theorem or postulate that is related to the measures of the angles in the pair, and find the unknown angle measure.

m∠7=(8x)∘, m∠5=140°

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.

Susie will have  decimal 10.29exact form 72/7mixed number form 10 2/7