What is The difference of 2.1 and twice a number p is negative 4.7 converted to numbers

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

Use the data on the dot plot to answer the question.how many people read for more than three hours last week? i'm on a unit test review

True or false look at the picture pls : /