Uhhh i think the answers A
DrH = DrT + 0.019
DrE = DrH - 0.020
DrH is the most and DrE is the least
The length of the picture would be 10 inches. If the frame needs to be 34, that means 7+7 for the width and 10+10 for the length.
Answer:

Step-by-step explanation:
Using the rule of exponents
×
⇔
, then
3² × 3²
= 
= 
Answer:
The iron weighed 1/12 pound more than the aluminum.
Step-by-step explanation:
The weight of the aluminum is given as 1/2 pound. But that can also be written as 6/12 pound.
This is a subtraction problem (subtracting fractions...so also a common denominator problem)
In order to subtract fractions you have to get a common denominator.
7/12 - 1/2
= 7/12 - 6/12
= 1/12
The iron is 1/12 pound heavier than the aluminum.