If stretching doesn't produce more insulin to help lower blood sugar then what happens that does help lower blood sugar?

List x1, x2, x3, x4 where xi is the left endpoint of the four equal intervals used to estimate the area under the curve of f(x) between x = 4 and x = 6. a 4, 4.5, 5, 5.5 b 4.5, 5, 5.5, 6 c 4.25, 4.75, 5.25, 5.75 d 4, 4.2, 5.4, 6

In the sixth grade 13 out of 20 students have a dog if there are 152 sixth grade students how many of them have a dog

Factor this polynomial completely. 12x^2+ x-6