Answer:
Marta
Step-by-step explanation:
We are given that

We have to find who is correct and explain.
We know that
Equation: It is mathematical sentence that combines numbers and variables which shows the equality of two expressions.
Example:

Expression: It is mathematical phrase that combines numbers and variables
using mathematical operators.It can be evaluated but not solved.
Example:

By definitions

It is in equation form.
Therefore, Marta is correct.
Answer:
you type in the answer if you know it
Step-by-step explanation:
Combined in mathematics is to add together to find a total. If you combine 1 and 2 you get 3.
The answer is -2,686
let me tell you why !
the answer would be negative, since the parachutist is descending. so 158 × 17 = 2,686
make that negative.
you get -2,686 !!!! hope that helps :)))