What is the inverse operation to solve n-9=-18

In a volcano, erupting lava flows continuously through a tube system about 19 kilometers to the sea. Assume a lava flow speed of 0.5 kilometers per hours and calculate how long it takes to reach the sea.

Which is the graph of f (x) = x2 - 2x + 3?

Write words to match the expression 3 + (4*12)

The probability that a flight is on timeat a large airline is 95%. if the probability that flights are on time are independent events, find the probability that 4 flights in a row are on time.

Porky the pig weighs 1,125 lbs. Less than Kobe the Cow. After each gains 50lbs. Kobe the Cow will weigh ten times as much as porky the pig. How much does each animal currently weigh?

The GCF of two different numbers is greater than the LCM of the numbers

Inga can earn $575 per week in a plant store, or she can earn 4% of total sales. How much would Inga have to sell to earn more in commission than in salary?

What is 54.039 in word form

At the end of the day a restaurant had one-half of a pound of leftover food if 7 employees split it how much would each employee get?

Which lines are parallel? Justify your answer. Lines a and b are parallel because their alternate exterior angles are congruent. Lines a and b are parallel because their same side exterior angles are supplementary.