Is the real number √12.1 rational or irrational

Divide the decimal 122.4 by 9 (122.4:9)

A scientist is cooling liquid at a steady rate. The temperature of the liquid changed by - 82 1/2 °C over 2 1/5 minutes. What was the temperature change after 1 minute? Enter your answer as a mixed number, in simplest form.

What does s and s^2 stand for in standard deviation

For his long distance phone service, Sam pays a $7 monthly fee plus 7 cents per minute. Last month sams long distance bill was $13.93. For how many minutes was Sam billed?

A road has two sets of traffic lights, which alternate between red and green. The first set is red for 15 seconds and green for 40 seconds. The second set is red for 35 seconds and green for 15 seconds.

Floor of the restaurant is covered with 9500 parallelogram shaped tiles each tile has a piece of 0.28 meter and a height of 0.34 menter what is the area of the floor. A 0.0952. B 0.062. C 904.4 D5890

In a toy store, The ratio of the number of dolls to the number of teddy bears is 7:6. If the store has 140 dolls, how many teddy bears are in the store?

Lisa made 18 blueberry muffins. if each muffin contained 6 blueberries. how many total blueberries did lisa use?

What is the value lof X in the equation 8x-2y=48, When y=4

What is the square root of 45*2 rounded