How many ways can you select a committee of 4 people from a group of 8?

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

The perimeter of a rectangle is 42 inches. if the width of the rectangle is 6 inches, what is the length

50 plz, given the system of equations, match the following items. x + 3 y = 5 x - 3 y = -1 a) x-determinant b) y-determinant c) system determinant match the following to the pictures below.