PLSS HELP FOR 100 POINTSSS PLSSS HELP IF U HELP ILL SEND 50 MORE POINTS TO UR ACC PL The members increased their elevation 290 feet during their hike this morning. Now they are at an elevation of 450 feet.

1. Write an expression that would represent their elevation before the hike.

2. Han says the equation e+290=450 describes the situation. What does the variable represent?
A. the starting elevation
B. the ending elevation
C. the elevation halfway through their hike

3. What is their starting elevation?

1. e+290=450

2. A

3. 450-290=160

Step-by-step explanation:

1. x+290 2. A 3. 290 because 290+290=450

Step-by-step explanation:

one that is bigger than 3 1/2

15

step-by-step explanation:

we are given the following expression and we are to solve it and find the product:

-13 × (-5)

solving the given expression in the standard order of solving a mathematical expression, beginning with the opening of brackets and then multiplying the terms and changing their signs.

-3 × -5 = 15 (answer is positive because when negative is multiplied with negative, it gives a positive answer)