Answer:
fist one is scalene. second one is no two sides are congruent
On expanded form is for example 139 in expanded form would be (100)+(30)+(9)and area model is the model for multiplication
Answer:

Step-by-step explanation:
Given

Required
Simplify
To do this, we apply distributive property;


Hence, the simplified form is 
Answer:
$400.25 is the answer of your question
Step-by-step explanation:
Use Simple interest formula for finding solution in which you use principal as $250 and rate of interest as 4 percent and time period as 15 years and then then to find total amount add Simple interest with principal .
Answer: ask for help on socratic
Step-by-step explanation:
Socratic can help you with any