John took all of his money out of his savings. he spent $50 on a radio and 3/5 of what remained on presents. half of what was left he put back in his checking accouny, and the remaining 35.00 he donated to charity. how much money did john originally have in his savings account?

Abucket of paint has spilled on a tile floor. the paint flow can be expressed with the function p(t) = 6(t), where t represents time in minutes and p represents how far the paint is spreading. the flowing paint is creating a circular pattern on the tile. the area of the pattern can be expressed as a(p) = 3.14(p)^2 part a: find the area of the circle of spilled paint as a function of time, or a[p(t)]. show your work. part b: how large is the area of spilled paint after 8 minutes? you may use 3.14 to approximate pi in this problem.