Trying to my sister with her homework and don’t understand any of it terrible with math someone

Step-by-step explanation:

So the 1st section is the like the linear equation. (You know what I mean, right?) And they're adding up for the same rate. The 1st one is 8 1/2, and the 2nd one will be 8 1/2 * 2 and so on.

For the 2nd section, just do this: distance / time, and you will get the rate of a minute. I'll do the 1st one. 3 1/2 divide 1 1/2 = 7/2 divide 3/2 = 7/2 * 2/3 = 14/6 = 7/3 (Remember, she's in elementary, so the amount has to be the smallest)

On section 3, same thing, make the unit of each side to 1 unit, and we can see which one is lower easily.

it will cost dollar $540

the living room is 3 which means if we divide 325/3 then we get $108

therefore if 1part of the living room cost $108 and 3 costed $325

then total 5part of the room will cost 5*108 which gives $540

step-by-step explanation: