there are 10 red marbles and 20 green marbles in a bag. colleen says the raito or red to gree is 10 to 20. fritz disagrees and says the ratio is 1; 2. which student is correct

The number is 58 is increased to 60 what is the percentage by which the number was increased to the nearest tenth of a percent

Which equation below give an incorrect value for the function k (X) = 512 ^x

If M is the set of all square numbers less than 80 and N is the set of all non-negative even numbers that are under 30, Write the lists of all elements of M and N.

A caterpillar is trapped in a glass that is 12 inches tall. The caterpillar can climb 3 inches per hour but then it rests for an hour during which time it slips back 1 inch. How long will it take for the caterpillar to get out?

A number cube has 1 face numbered 1, 2 faces numbered 2 and 3 faces numbered 3. The cube is tossed 100 times. What is the experimental probability of the cube showing 1

Is 2/5 to 4/5 a percent change increase or decrease?

Alan is going rollerblading it cost $2.75 to rent rollerblades and $1.50 for each hour spent rollerblading if alex needs to rent rollerblades and he skates for 4 hours how much will it cost him

At a pet store, 38% of the animals are dogs. if there are a total of 88 animals at the pet store, write a proportion can be used to find x, the numbers of dogs at the pet store

George walks 1 mile to school. He leaves home at the same time each day, walks at a steady speed of 3 miles per hour, and arrives just as school begins.

A family went on vacation and used 5.4 gallons of gasoline to travel 150 miles how many total gallons of gassoline will they need to travel 200 more miles