Ausgtin has 1/4 as many cards as mateo. mateo has 1/2 as many cards of amaro. who has the most cards

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.

Twice the sum of a number and 2 is equal to three times the difference of the number and 8. find the number.

What is the base of the exponential expression of 4 to the power of 5