Add the two expressions. 8k + 4 and 3k + 8 enter your answer in the box.

The area of each triangle is 7 square units. the surface area of the triangular prism is

Amotorboat maintained a constant speed of 12 miles per hour relative to the water in going 45 miles upstream and then returning. the total time for the trip was 8.0 hours. use this information to find the speed of the current.

Factor 15x^3 - 5x^2 +6x-2 by grouping. what is the resulting expression