If an average grade of an english class rose from 70 to 80 what is the approximate percent increase

Evaluate 3(a + b + c)squared for a = 2, b = 3, and c = 4. a. 54 b. 243 c.729 add solution .

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.

How can you find the magnitude of a vector, v = < x,y > , where the horizontal change is x and the vertical change is y?