If a varies directly as b and a=3 when b=12, what is the value of a when b=18?

Abby wants to use her savings of $1325 to learn yoga. The total charges to learn yogaand called a fix registration fee of $35 and a monthly fee of $50. What is the maximum number of months for which Abby can learn yoga with her savings?

The cost of hiring a hall for a party can be worked out using this formula. Cost = £5.50 x number of people + £50 How much would it cost to hire the hall for 20 people?

Tim walked 2/5 a mile on Monday 6/7 mike on Tuesday and 2/3 mike on Wednesday How far did he walk in all

A new muscle relaxant is available. Researchers from the firm developing the relaxant have done studies that indicate that the time lapse between administration of the drug and beginning effects of the drug is normally distributed, with mean μ =

2,000 milliliters of soda, 2.5 liters of apple juice, 1,500 milliliters of fruit punch, 2 liters of lemonade Mandy wants to buy a variety of beverages for her birthday party.

Find the unit rate of 42 teaspoons for 6 cups

Ms. Corley wants to take her class on a trip to either the nature center or the zoo. The nature center charges $4 per student plus $95 for a 1-hour naturalist program. The zoo charges $9 per student plus $75 for a 1-hour guided tour.

It is a four digit whole number

If sam walks 650 meters in x minutes then write an algebraic expression which represents the number of minutes it will take sam to walk 1500 meters at the same average rate.

Chloe makes $450 per month. She already has $50 saved and is planning to save 10% of what she earns from now on. Write an equation to calculate her total amount saved as a function of the number of months she works.