I think it is C
Hope this helped
Answer:
Joshua solved 7 math problems and tread 14 pages.
Step-by-step explanation:
Let x be the number of math problems Joshua solved. The number of pages Joshua read is twice the number of math problems he solved, then 2x is the number of pages Joshua read.
Joshua can solve each math problem in 2.5 minutes, then x math problems he solves in 2.5x minutes.
Joshua can read each page in 3 minutes, then 2x pages he reads in
minutes.
It took him 59.5 minutes to complete all of his homework, so

Solve this equation:

Joshua solved 7 math problems and tread 14 pages.
10-D
12- A
first of all find the area of the whole rectangular:
3+3=6
3*6=18
then small one
3*3= 9
18-9 =9
Volume of the cone=1/3πr^2h
V=1/3π(1.25)^2×2.75
V≈4.5 cubic inches
Volume of the sphere=4/3πr^3
V≈0.07 cubic inches
4.5-0.07=4.43. As a result, the volume of the cone that can fipp with ice is about 4.43 cubic inches. Hope it help!
The statement which is true in the choices is the third item in the choices such as "Nina makes 20x dollars at the clothing store each week". It was clearly stated in the given that x represent the total number of hours she worked in a week. This statement made the other items in the choices wrong.