Element X decays radioactively with a half life of 8 minutes. If there are 690 grams of Element X, how long, to the nearest tenth of a minute, would it take the element to
decay to 7 grams?
I need help please

Factor the expression using gcf 9b+45

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.

The diagram shows a cuboid abcdefgh abcd is a square with area 25cm². find the volume of the cuboid.