A rectangle has a height of 4x and a width of 3x+1

Step-by-step explanation:

Ok, so to find the area of a square or a rectangle we need to multiply the width by the height. Since we now both, we can create an expression.

So now we can apply the distributive law/property to expand the expression.

Finally, simplify.

i'm not entirely sure

step-by-step explanation:

if you ask home depot or lowe's they might be able to you out

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)