Plz me do this math problem. it says "my brother nathan is 15 years old and my uncle is 40 years old. how many years will it take for my brother nathan to reach the age of 40" than it says "write an equation and solve the problem show your work"

Maria walks a round trip of 0.75 mile to school every day.how many miles will she walk in 4.5 days

Michelle and julie work at a catering company. they need to bake 264 cookies for a birthday party that starts in a little over an hour and a half. each tube of cookie dough claims to make 36 cookies, but michelle eats about 1/5 of every tube and julie makes cookies that are 1.5 times as large as the recommended cookie size.it takes about 8 minutes to bake a container of cookies, but since julie's cookies are larger, they take 12 minutes to bake. a. how many tubes should each girl plan to bake? how long does each girl use the oven? b. explain your solution process what did you make? c. what assumptions did you make?

Solve the triangle. a = 21°, c = 105°, c = 5