Please answer these for a lot of points don’t scam me or I will report you a lot!

What is 20+(5 x 2/5 )+ 3 show your work

Asphere has a diameter of 10 in. what is the volume of the sphere?

Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?