Ethan wants to buy an action figure for $3 and several packs of trading cards for $6 each at a toy store. He can spend no more than $39 at the store today, but if he spends $15 or more he will receive a free poster. Write and solve an inequality where x represents how many packs of cards Ethan can buy today to receive the free poster.

the answer to your question is c.)   volcanoes built the mountains and earthquakes tore them down.

step-by-step explanation:

take the logarithm of both sides (the base of the log doesn't matter):

apply the exponent property - this says that :

distribute the log terms on both sides:

group like terms together:

divide through both sides by the coefficient on :

you can do some additional rewriting here using the properties of the logarithm to simplify things if you like:

hi there!

step-by-step explanation:

a roof pitch is basically for every inch rise there is 12 inches run.

the height of the roof is also known as the rafter.

formula: rafter^2 = rise^2 + run^2

rafter^2 = 5^2 + 12^2

rafter^2 = 25 + 144

rafter ^2 = 169"^2

the height of the roof from the lowest point to the highest point is 169"^2.

hope this : )