Input your answers in the format of x, y

input your x value then a comma then your y without any spaces

step-by-step explanation:

given perimeter: 28cm

length: 9cm

atp,

2(l+w)=p of the reactangle

2(9+x)=28

18+2x=28

2x=28-18

x=10/2

x=5

therefore width is 5 cm

b.   e = 7.5h

hope this , lovely!

well, to find it in standard form, you must add all of the terms. which would give you . that is in standard form. however, if you're looking for it to be in scientific notation, it would be converted into .

the answer is 250.

by: nicholas