A swim race has a total distance of 25 mi . Race officials want to mark the course every 500 yd with a buoy, including one at the finish line. (The starting line does not need a buoy.) How many buoys are needed

I believe 88 buoys

Step-by-step explanation:

The race is 25 miles long and theirs a buoy every 500 yards

There are 44000 yards in 25 miles

44000 (yards) divided by 500 (yards) is 88 (buoys).

500 yards      44000 yards

=  

1 buoy              x buoys

Going diagonally, 1 × 44000 is 44000.

44000 ÷ 500 = x

x = 88

x=-2

infinite number of lines, so there is an infinite number of equations.

step-by-step explanation:

there are an infinite number of line that passes through the point (-2,5)

x=-2   is one line that passes through the point

y = 5 is another line that passes through the point

(these two lines are perpendicular to each other).

since the number of   numbers are infinite and the slope is the ratio of two numbers,(change in y over change in x) we can have an infinite number of slopes.     our only condition is that it passes through the point (-2,5)