Solve these for me please

4x+7x-2+5x-10=180 i need to know the degrees

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)

Asunflower was 20 1/2 inches tall. over the next 6 months, it grew to a height of 37 inches tall. what was the average yearly growth rate of the height of the plzzz write a proportion i will give you 100 points

When george started his current job, his employer told him that at the end of the first year, he would receive two vacation days. after each year worked, his number of vacation days will double up to five work weeks (25days) of payed vacation. how many vacation days will he have in 4 years