One winter morning in canada, the temperature at 8: 00 was 1.5°c. from 8: 00 to 11: 00, the temperature increased by 0.7°c. from 11: 00 to 2: 00, it dropped 2.6°c, and from 2: 00 to 5: 00, it decreased by 0.9°c.

what expression shows the temperature in °c at 5: 00 p. m.?

a. 1.5 + 0.7 - (-2.6) - (-0.9) b. 0.7 - (-2.6 - 0.9)

c. 1.5 + 0.7 - (-2.6 - 0.9) d. 1.5 + 0.7 + (-2.6) + (-0.9)

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?

How many $20 bills do you need to have to make $280

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?