Natalia is making gift bags for her son's birthday party. each bag costs $3.24 to make and she needs to make 15 bags. how much will the 15 bags cost?

Write two subtraction equations that are equivalent to 5 + 12 = 17.

Determine whether the following statements are true and give an explanation or counterexample. bold a. when using the shell method, the axis of the cylindrical shells is parallel to the axis of revolution. bold b. if a region is revolved about the y-axis, then the shell method must be used. bold c. if a region is revolved about the x-axis, then in principle it is possible to use the disk/washer method and integrate with respect to x or the shell method and integrate with respect to y.

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class