Aproblem states: "there are 7 more girls than boys in a class. there are 23 students in the class in all. how many girls are there in the class? "
what are the unknowns in this problem?

The clayton family’s pool has vertices at the coordinates (0, 2), (0, 5), (2, 5), (2, 6), (5, 6), (5, 1), (2, 1), and (2, 2). if each grid square has an area of 9 square feet, what is the area of the pool?

Me. i can't figure out this question. give an explanation too. .

Arectangle has a width of 5 cm and a length of 10 cm. if the width is increased by 3, how does the perimeter change?