One morning, the temperature was 3 degrees below zero. By noon, the temperature rose 15 degrees and then dropped 7 degrees by evening. What was the evening temperature?

A. 12 above zero
B. 18 above zero
C. 8 below zero
D. 5 below zero

D

Step-by-step explanation:

-3 plus 15 = 12 - 7 =5

7 weeks

step-by-step explanation:

convert each fraction to the least common multiple of 20, so 3/4 = 15/20 & 1/10 = 2/20, then divide 15 by 2 and you get a little over 7, so the food will last 7 weeks.

step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

hope this : )