If the slope of line a is -4, and line a is perpendicular to line b which statement must be true? the slope of line b is -4 the slope of line b is 4 the slope of line b is 1/4 none of the choices are correct

One integer is 8 times another. if the product is 72, then find the integers

When the solutions to each of the two equations below are graphed in the xy-coordinate plane, the graphs of the solutions intersect at two places. write the y-cordninates of the points of intersection in the boxes below in order from smallest to largest. y=2x y=x^2-3

Someone answer asap for ! the following statements are true about the coins calvin and sasha have collected. * calvin and sasha has the same amount of money. * calvin has only quarters. * sasha has dimes, nickels, and pennies * calvin has the same number of quarters as sasha has dimes. * sasha has $1.95 in coins that are not dimes. exactly how many quarters does calvin have?