In a school building, rhere are 8 exterior doors and twelve stairways to enter the second floor. Find the total number of ways to reach the second floor.

Sean's car used 8 gallons of gasoline to travel 340 miles. After a mechanic worked on the car, it used 7 gallons of gasoline to travel 350 miles. If the price of gasoline was approximately $4.

What is 93•10•10•10•10•10•10•10

Simplify [2 (cos 210 + i sin 210) ]^2

Solve for all the missing side lengths of a triangle

renu is 2 times older than suman. Anita is 9 years older than suman and 6 years younger than renu. jif some of their ages is 69, how old is renu

Rewrite the product as a power ... a^7*y^7

Give the algebraic expression (answer if your smart) 1. number of hours in d days 2. number of hours in m minutes 3. The number if days in y years 4. the cost of x liters of gasoline if 1 liter is ₱ 50.

It costs a family $216 to have a 9 ft-by-12 ft wooden floor refinished. At that rate, how much would it cost them to have a 12 ft-by-16 ft wooden floor refinished? A) 2,592 B) 384 C) 288

Complete the following statement. ___/12 = - 6

if the number of neutrons in an atom are different than the most commonly occurring isotope then this would change the (blank) of the atom. this atom is called a (blank)