Jane made a door frame for the house but does not have a tool to measure the angles. How can she check that the
corner is 90 degrees?
Here - Measure three sides , including the diagonals.

Twelve friends shared 8 small pizzas equally.how many pizzas did each person get?

1. the following set of data represents the number of waiting times in minutes from a random sample of 30 customers waiting for service at a department store. 4 5 7 10 11 11 12 12 13 15 15 17 17 17 17 17 18 20 20 21 22 22 23 24 25 27 27 31 31 32 a. determine the number of classes and class interval.

How is working backward similar to solving an equation?