50 points and I’ll mark you brainiest if correct.

The container can hold 18 gallons

Step-by-step explanation:

Assume the container can hold x gallons

∵ The container is  full with water

∵ It can hold x gallons

→ Multiply by x to find the number of gallons in the container

∴ The number of gallons in the container = x

∵ 4 gallons of water pouring out

∵ It is   full

→ Multiply by x to find the number of gallons left in it

∴ The number of gallons left in the container = x

→ The difference between the numbers of gallons is 4 gallons

∵   x - x = 4

→ Subtract the terms of the left side

∴ x = 4

→ Multiply both sides by 9

∴ 2x = 36

→ Divide both sides by 18

∴ x = 18

∵ x represents the full of the container

∴ The container can hold 18 gallons

answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.

when rotating a figure 180 degrees, imagine that you are able to take the figure and turn it clockwise or counterclockwise around a center point. to rotate a figure 180 degrees, you will need to apply the rule (x, y) → (-x, -y). start by using a coordinate grid with coordinates for each vertex of the figure. the center point of the coordinate grid is located at (0, 0), which is what you will rotate the figure around. write down the original coordinates of the shape you are going to rotate. then, apply the rule. for example, coordinate (1, 2) becomes (-1, -2). another example would be, coordinate (-4, -2) becoming (4, 2). after you change each original coordinate to the rotated coordinate, you will draw your new figure.

step-by-step explanation: