When is the substitution method a better method than graphing for solving a system of linear equations?

The following frequency table relates the weekly sales of bicycles at a given store over a 42-week period.value01234567frequency367108521(a) in how many weeks were at least 2 bikes sold? (b) in how many weeks were at least 5 bikes sold? (c) in how many weeks were an even number of bikes sold?

Solve the inequality and graph 6j - 7 < 5

Given the graphed function below which of the following orders pairs are found on the inverse function