Researchers counted 8,912 monarch butterflies on one branch of a tree at site in mexico They estimated that the total number of butterflies at the site was 1,000 times as large About how many butterflies were at the site in all

40% of a number equals the difference between the number and 10

Find each value if f (x) = -5x+2 and g (x) = -2x+3

Nick is writing a book he types about 40 words per minute how many words can he type in one hour

Is 73 a prime number or composite

7b squared - 21b-273=7

Tomas earned $38.25 for the cleaning the garage. He was paid $4.25 per hour. Write and solve an equation to find how many hours it took him to cleen the garage.

Which would be the "best" or quickest first step to solve the system using substitution? x - 2y = - 2 - 3+y=2 Solve (rearrange) the 1st equation for X. Solve (rearrange) the 1st equation for Y. Solve (rearrange) the 2nd equation for X.

Write an explicit formula for the sequence - 4, 1, 6, 11, ... an = - 4 + 5 (n+1) an = - 4 + 5 (n-1) an = - 4 + (n-1) an = - 4 + 5n

How many days are in four consecutive years

Two high-speed ferries leave at the same time from a city to go to the same island. The first ferry, the Cat, travels at 33 miles per hour. The second ferry, the Bird, travels at 22 miles per hour.