Write an equivalent expression:
1) 99-9-11a + 3
2) 4(x + 5) - 10x + 4/5

Find the solution of each of the following.

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.

Tan198=asin164=? how to solve this? ?