Find the domain of the rational expression 8-x/7x+21

The median to 4.7,8.51,6.5,7.42,9.64,7.2,9.3

Round 90608.5881594 to 1 decimal place

5 + (x-11) = 5x-14. What is x?

What is 2/9 divided by 3?

On my brother's 14th birthday, he was 160 cm tall. Within exactly one year, his height increased by 6%. How tall was he on his 15th birthday? Round your answer to the nearest cm.

Mr. Yi buys vegetables at a market. He purchases 6 pounds of potatoes, p, and 3 pounds of onions, n, for $18. Onions cost twice as much as potatoes.

What is the square root of 256?

Mark and peter went to an arcade where the machines took tokens. Marilk played 9 games of ping pong and 5 games of pinball, using a total of 29 tokens. At the same time, peter played 3 games of ping pong and 1 game of pinball using up 7 tokens.

If the side length of square ABCD is four times the side length of square PQRS, which statement is true? A. The perimeter of square ABCD is 16 times the perimeter of square PQRS. B.

Two friends are going on a vacation. The hotel room they are staying in is $140 per night. The total cost for both tickets to the theme park they are going to is $65.