Danny buys 4 pizzas and some pretzels for his baseball team. the cost of each pizza is $8.99, and the cost of each pretzel is $0.99. danny spends a total of $50.81 on the pizzas and pretzels.

15

Step-by-step explanation:

Danny buys 4 pizzas and some pretzels for his baseball team.

The cost of each pizza is $8.99

Total cost of 4 pizza = 4 × 8.99

                                  = $35.96

Let buy p numbers of pretzels whose cost $0.99 each.

Total cost for p pretzels = 0.99p

Total  spend by Danny on pizzas and pretzels = $50.81

                               35.96 + 0.99p = 50.81

                                             0.99p = 50.81 - 35.96

                                             0.99p = 14.85

                                                     p = 15

Hence, Danny bought 15 pretzels for baseball team.

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)

99

step-by-step explanation: