21. Higher Order Thinking Lea spent 25% of x hours at her part-time job. What is x if 25% of x is about 30 hours? Explain how you estimated and which property of equality you used to find x.​

In a certain pentagon, the interior angles are a,b,c,d,e where a,b,c,d,e are integers strictly less than 180. ("strictly less than 180" means they are "less than and not equal to" 180.) if the median of the interior angles is 61 and there is only one mode, then what are the degree measures of all five angles?

Which ordered pair (c,d) is a solution to the given system of linear equations- c+2d=13 -9c-4d=-15

The graph represents the gallons of water in a water tank with respect to the number of hours since it was completely filled