What's the difference between ratio and proportion?

Jane's age today is 6 times her age 10 years ago. What is her age today?

Standard normal curve between z=.42 and z=1.92 a =.6902 b =.3098 c =.1902 d =.8098

At the beginning of an experiment, there are 400 grams of contaminants. Each hour, three-fourths of the contaminants are filtered out. A. Formulate a recursive sequence modeling the number of grams after "n" hours. B.

How do u do ratio? I don't understand

How much 30% paint thinner solution should be added to a gallon of 10% paint thinner solution to make a solution that is 20% paint thinner

Nano purchased a computer for $800. If the sales tax rate was 8%, how much in all did he pay for the computer? $836 $848 $864 $872

The formula below gives l, the interest earned by depositing p dollars in a bank account at annual interest rate r for one year. l=pr If a deposit earns $75 of interest, which equation gives the principal p as a function of the interest rate r? A.

Morgan's juice glass holds 225 mL. If she uses the glass to drink 8 glasses of water every day, how many liters of water does Morgan drink in one week?

Find the area of a circle with a diameter of 10 units. Round answer to the nearest hundredth of a square unit.

2. To the nearest cent, what is $57.10 decreased by 41%? A $23.41 B $33.69 C S34.69 D S80.5