What is the surface area of the​ solid?

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

Marcus and cody both leave the park at the same time, but in opposite directions. if cody travels 6 mph faster than marcus and after 4 hours they are 64 miles apart, how fast is each traveling? solve using rare times time = distance.

Using only odd number for numerators write two different subtraction problems that have a difference of 3/4