Acamper wants to know the width of a river. from point a, he walks downstream 90 feet to point b and sights a canoe across the
river. it is determined that a = 23°. about how wide is the river?

The table shows the webster family’s monthly expenses for the first three months of the year. they are $2,687.44, $2,613.09, and $2,808.64. what is the average monthly expenditure for all expenses?

How do you determine if an ordered pair is a solution to a given equation?

Which expression and diagram represent “renee biked four times as far this month as last month”?