Find the next three terms of the sequence

21,19,17,15,

The amount of calories you burn after riding x miles on your bike is represented by the function y=100x. Find the domain of the function and determine whether it is discrete or continuous.

This is the problem on my grandson's homework The difference between two numbers is 361. What might the numbers be? Show 2 different possible solutions?

What does a cell do to a substances in endocytosis?

Six female cats are chosen at random. what is the probability that exactly one of them weighs more than 4.5 kg?

Express the flying time between city a and city b in terms of the flying time t between city b and city a.

What does the equation y = x2 represent as a curve in the set of real numbers2?

The printer charges $4 per book to print it, and you spent $3500 on advertising. you sell the book for $15 a copy. How many copies must you sell so that your income from sales is greater than your total cost?

A roller coaster can accommodate 346 rider in 20 minutes. How many riders could ride in 90 minutes?

You have $12 to buy five goldfish for your new fish tank. Write and solve an inequality that represents the prices you can pay per fish.

Adam has 16.45 kg of flour, and he uses 6.4 kg to make hot cross buns. The remaining flour is exactly enough to make 15 batches of scones. How much flour, on kg, will be in each batch of scomes?