Which inequality is shown in the graph?

2-digit numbers less than 91 which are 1 less than a multiple of 10

A. 90 degrees b. 45 degrees c. 30 degrees d. 120 degrees

Jose predicted that he would sell 48 umbrellas. he actually sold 72 umbrellas. what are the values of a and b in the table below? round to the nearest tenth if necessary