Can someone help me with this and explain it please asap!:)

9

Step-by-step explanation:

The x-value is already given which is 2. Simply plug in 2 into the equation and you get y=2(2)+5 = 9

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)

the height of the surface increases from the center out to the sides of the road

it is c!