Answer: 1.58 hours
<u>Step-by-step explanation:</u>

Answer:
D
Step-by-step explanation:
Using the rule of exponents
⇔ 
Given

= 
= (
)³
Answer:
Javier's equation is not correct because the variable "a" should be multiplied by only and then added to
Step-by-step explanation:
Let
a------>is the tree’s age in years
we have that
-------> Javier's equation
we know that
The equation that represent the situation is equal to
Solve for a
Multiply by both sides
Javier's equation is not correct because the variable "a" should be multiplied by only and then added to
Answer:
7pounds=$10.43
10 pounds=? solution 10.43×10÷7=14.9 the equals sign means cross multiply.