This histogram shows the numbers of people who volunteered for community service and the number of hours they worked.

how many volunteers worked no more than 10 hours?

a.30

b.35

c.55

d.

Amachine part consists of a half sphere and a cylinder, as shown in the figure. the total volume of the part is π cubic inches.

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

Select the correct answer from each drop-down menu. consider the following polynomials equations. 3x^2(x-1) and -3x^3+ 4x^2-2x+1 perform each operation and determine if the result is a polynomial. is the result of a + b a polynomial? yes or no is the result of a - b a polynomial? yes or no is the result of a · b a polynomial? yes or no