(6x - 4y = 11
6x + 14y= -12
How can you represent the system of equations with a matrix

The depth of a lake at a certain point, wich is a function of the distance of that point from shore, is 30 feet.

Four congruent circular holes with a diameter of 2 in. were punches out of a piece of paper. what is the area of the paper that is left ? use 3.14 for pi

Which of the following is the explicit rule for a geometric sequence defined a recursive formula of a -5a for which the first term is 23?