HELP PLEASEEE! EXPLAIN YOUR ANSWER DO BOTH PARTS

(22 x 12) + 22x=area

660

Step-by-step explanation:

You have to do the first room area plus the second room area. The second one you add the two areas.

Part A: 22(12+w)

Part B: 660 feet²

Step-by-step explanation:

(I'm assuming that both these answers have the rooms put together as one)

Part A: distributive property is when you multiply at least two things within parenthesis by its outside number. to find area is length times width. Length in this case is 22 qnd width is 12 + w. Because we don't know w we'll put it on the inside of the parenthesis with 12 and we have to multiply those two by 22 because they're the width.

Part B: Plugging the new variable into the expression, 22(12+18) gets us our answer, 660 feet². (18+12=30, 30×22=660)

f(x) is going down by 4

step-by-step explanation:

(its either that or its going left by 4)

reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.