Janice earns a 4 percent commission for the medical equipment that she sells. if she earned $1,823.94 in commission on the digital x-ray machine that she sold, what was the cost of the machine?

1. find the area of the unshaded square 2. find the area of the large square 3. what is the area of the frame represented by the shaded region show

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.

Olga bought a new skirt that cost $20. sales tax is 5%. how much did olga pay, including sales tax? 7.