Find the least number which when divided by 9, 15 and 10 leave
remainder 7 in each case.

Use the diagonals to determine whether a parallelogram with vertices u(2,−2), v(9,−2), w(9,−6), and x(2,−6) is a rectangle, rhombus, or square. give all the names that apply.

What is the result of adding the system of equations? 2x+y=4 3x-y=6

Complete the solution of the equation. find the value of y when x equals -5. -4x - 8y = -52