The average cost of pet supplies is $66 per month and has a standard deviation of $21. If the family wants to budget for their costs being under that amount 99% of the time, what should they budget? © $87 © $108 $129 $158​

Sorry guys but as you have a small brain

Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan bought 4 bottles of water and 1 cup of coffee for his family for 7.15. how much does each bottle of water cost? how much does each cup of coffee cost?

The angles below are supplementary. what is the value of x? a pair of supplementary angles is shown. one angle measures 7x + 33, and the other angle measures 70. 5.3 8.14 11 14.7