(08.06) an unknown number y is 15 more than an unknown number x. the number y is also x less than 8. the equations to find x and y are shown below. y = x + 15 y = −x + 8 which of the following statements is a correct step to find x and y? (4 points) multiply the equations to eliminate y. add the equations to eliminate x. * i think its this one write the points where the graphs of the equations intersect the x-axis. write the points where the graphs of the equations intersect the y-axis.

(01.03 mc) which of the following is a step in simplifying the expression x multiplied by y to the power of 2 over x to the power of negative 3 multiplied by y to the power of 3, the whole to the power of negative 4. select one: a. x to the power of negative 4 multiplied by y to the power of negative 2, the whole over x to the power of negative 7 multiplied by y to the power of negative 1. b. x to the power of negative 4 multiplied by y to the power of negative 8, the whole over x to the power of 12 multiplied by y to the power of negative 12. c. x to the power of negative 4 multiplied by y to the power of negative 8, the whole over x to the power of negative 3 multiplied by y to the power of 3. d. x to the power of negative 4 multiplied by y to the power of negative 2, the whole over x to the power of negative 3 multiplied by y to the power of 3.