Mrs. Start's class paid $5.60 for 4/5 yd of lace for an art project. Later, the class decided to buy another 7 3/4 yd of the same lace to make costumes for the school musical. How much money do they need for this second purchase?

The median of a data set is the measure of center that is found by adding the data values and dividing the total by the number of data values that is the value that occurs with the greatest frequency that is the value midway between the maximum and minimum values in the original data set that is the middle value when the original data values are arranged in order of increasing (or decreasing) magnitude

Parabolas y=−2x^2 and y=2x^2 +k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.

Plz hurry evaluate the expression a+b where a=8 and b=19