Need help with these two problems! 1. use the associative, commutative, and distribute properties to prove the expression 7(3y-5) -2(10+4y) is equivalent to the expression 13y-55.
2. prove algebraically that each expression has the same value by evaluating each expression for y=5, 7(3y-5) -2(10+4y), 13y-55.

Aright cylinder has a diameter of 8 m and a height of 6m. what is the volume of the cylinder

Plz answer asap! i will reward brainliest and 12 points for these three questions!take notice: these three questions are completely different! 1) what is the percentage of sugar in the syrup made of 10 kg of water and 4 kg of suugar? 2) what was the original price if after 10% discount it became $450? 3) at first a price was decreased by 12%, then it was disounted again by an additional 5%. what is the percent of the total discount? , and remeber i will award brainliest and 12 points!

In the next 10 years, how do you think hipaa guidelines will affect the roles, responsibilities and tools of a medical transcriptionist