Answer:
B
Step-by-step explanation:
20*3=60
20*7=140
20*11=220
First, distribute 2 to x and 4, and -3 to x and -5 (distributive property)
2(x + 4) = 2x + 8
-3(x - 5) = -3x + 15
2x + 8 - 3x + 15
Next, combine like terms
2x - 3x = -x
8 + 15 = 23
-x + 23 is your answer
hope this helps
Answer:

Step-by-step explanation:
Area for triangle is equal to half base time perpendicular height.



note that it's 10cm X 12 cm that's how you get cm²
In this question, you are given the water volume(6.2 cubic ft) and the water density (8.33 pounds/gallon). To find the water mass you need to multiply the volume with density, but you need to convert it so they have same unit.
The calculation would be:
mass = volume x density
mass = 6.2 cubic ft x 7.48 gallon/cubic ft x 8.33 pound/gallon= 386.31208 pounds.
In ounce it will be= 386.31208 pounds x 16 ounce/pouns= 6180,99328 ounces
This question belongs to Greatest common factor category.
Total number of pennies = 135
Total number of nickles = 225
So the greatest common factor is 45.
Hence,
Suyin can place pennies in a stack of 45 and there will be 3 stacks like that.
She can place nickles in a stack of 45 and there will be 5 stacks like that.