Hi! It would be very helpful if I got an answer & explanation for this problem.. I don't get it. Stacy reduces the milk-fat content of 5 pints of cream that is 15% fat by combining it with 7 pints of milk that is only 3% fat. What is the percentage of fat in the mixture?

Plz hurry evaluate the expression a+b where a=8 and b=19

3/4 = c/36 i need with this fraction proble.

Tom and lilly rented a house for $12,000 last year. at the start of the year they bought the house they had been renting directly from the owner for $250,000. they believe they could rent it for $12,000 this year, but stay in the house. how much does tom and lilly’s decision to buy the house change gdp? a. it reduces gdp by $12,000 b. it does not change gdp c. it raises gdp by $238,000 d. it raises gdp by $250,000