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.