<span>4a+7b+3a-2b+2a
Substitute all of the variables for the numbers given
4(-5)+7(3)+3(-5)-2(3)+2(-5)
Multiply all of the variables by their coefficient
-20+21-15-6-10
Combine like terms
Final Answer: -30
</span>
See https://web2.0calc.com/questions/help-please_82538.
7.
7 squared gives 49, and it is a prime number.
Answer:
b
Step-by-step explanation:
it can be 20 ft that is what l think
Weight of other bag would be 14/15 kg
