I need help on this, I don't get too much on lateral faces

Complete the solution of the equation. find the value of y when x equals to 6 4x+y=20

Look at the chart showing the results of a baseball player at bat. which is the probability of getting a hit?

Determine the vertex form of g(x) = x2 + 2x - 1. which graph represents g(x)? -nw -3-2-1, 1 1 2 3 -3 2- 1 -3- 1 2 3 - 1 2 3