1. today amy’s bank account contains $116.85. yesterday she made a deposit of $32.50. what was the bank account balance before amy made the deposit? a) write an equation that models the problem b) solve the equation. c) write the answer in the form of a sentence.

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?

Acoffee shop orders at most $3,500 worth of coffee and tea. the shop needs to make a profit of at least $1,900 on the order. the possible combinations of coffee and tea for this order are given by this system of inequalities, where c = pounds of coffee and t = pounds of tea: 6c + 13t ≤ 3,500 3.50c + 4t ≥ 1,900 which graph's shaded region represents the possible combinations of coffee and tea for this order?

Tell whether the two rates form a proportion