Find the mean median mode and range of the data set after you perform the given operations on each data value 13, 17, 15, 18, 21, 13, 20 add 3.7

Complete the table for different values of x in the polynomial expression -7x2 + 32x + 240. then, determine the optimal price that the taco truck should sell its tacos for. assume whole dollar amounts for the tacos.

What describes horizontal cross section of the right rectangle 6m 8m 5m

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?