WILL GIVE The recursive formula an = an-1 + 5 models the amount of money Devon saves each week. Devon started with $40. How much money will Devon have saved after 10 weeks?

What is the volume of the sphere shown below with a radius of 3?

Can someone me i’m confused. will give brainliest and a whole bunch of points

Some boys and girls were asked if they had a pet. one third of the group were boys. there were 20 boys. 20% of the girls had a pet. boys with a pet : girls with a pet = 1 : 5 i need to know how many girls there are.