On monday morning, susan bought 2.5 pounds of grapes at the supermarket. that day, susan ate some grapes and had 1.75 pounds of grape left. what is the percent decrease of pounds of grapes on monday?

30%

Step-by-step explanation:

Use formula to find percent decrease

In your case,

Old Value = 2.5 pounds

New Value = 1.75 pounds

Hence,

the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950

to determine the unit cost your would divide the total cost by the number sold.

7 bagels for $4.41       $4.41/7 = $.63 each at fresh side

5 bagels for $3.60         $3.60/5 = $.72 each at value mart