In a group of 48 children, 25 had a dog, 35 had a cat, and 15 had both a dog and a cat. How many children had neither a dog nor a cat as a pet? Please show work.
A) 3
B) 23
C) 38
D) 20

The length of a rectangular plot of land is given by the expression 6x^3y^4. the width of the plot is given by the expression 5x^5y^4z. find an expression to represent the area of the rectangular plot.

Renee hiked for 6 3 /4 miles. after resting, renee hiked back along the same route for 5 1 /4 miles. how many more miles does renee need to hike to return to the place where she started? represent your answer as a simplified mixed number, if necessary.

If the circumference of the circle is below 72, what is the length of ab (the minor arc)