Tom buys a pen holder for $5 and 10 pens for $1 each. The sales tax for the whole purchase is $3. What percent was the sales tax?

What's the common factor of 12,18 and 40?

Write a paragraph proof to show that 2 circles with the same area are congruent

What would be the total length of the 2 1/4-inch barrettes if Mikayla places them end to end?

What are the factors of - 72 that add up to - 15

Find the greatest common factor of 12a and 16c^2

How many bunches of 5 flowers can be made from 14 flowers?

The ratio of hydrogen atoms to oxygen atoms in water is 2:1. If an amount of water contains 341 trillion atoms of oxygen, how many hydrogen atoms are there?

Evaluate 0.411+9.9+0.8 and round the answer appropriately. Express your answer numerically using the appropriate number of decimal places.

A bicycle wheel has a radius of 0.33 m. how many revolutions does the wheel make when the bicycle is ridden 1 km? round to the nearest whole number. solved

The following are the ages (years) of 5 people in a room: 13, 22, 15, 14, 15 A person enters the room. The mean age of the 6 people is now 16. What is the age of the person who entered the room