How do u do algebra because I don't understand

Anuhea has horses and ducks on her farm. There is a total of 15 animals. She counts a total of 36 animal legs.

3. Natalia is participating in a jump-a- thon to raise money for her school trip. She logs the number of times she jumps rope each day for one week. On the first day, Natalia jumps 234 times.

At a university with 1,000 business majors, there are 200 business students enrolled in an introductory statistics course. Of these 200, 50 are also enrolled in an introductory accounting course.

1627187 to the nearest ten

The length of a ribbon is 7 / 8 meter. Sun Yi needs pieces measuring 1 / 7 meter for an art project. What is the greatest number of pieces measuring 1 / 7 meter that can be cut from the ribbon?

What is the domain of f (x) = ?

What is the solution to x^2-6x+13=4?

A loaded die is weighted so that rolling a 4 is three times as likely as rolling any of the other numbers. you roll the die twice and record the sum of the two numbers. what is the probability that this sum is equal to 7?

What numbers multiply to - 33 and add to 8

You are measuring the height of a statue. You stand 5 feet from the base of the statue. You measure the angle of elevation from the ground to the top of the statue to be 68°. Find the height h of the statue to the nearest foot