What is 0.000000685 in scientific notation

car insurance:120.54 cell phone. bill:55.99 groceries 65.00 monthly income is $1,050.00 What percentage of her income are expenses?

At a bookstore, you buy a calendar for $3 and some books for $4 each. You spend a total of $23. How many books did you buy?

3+g=1/4 Solve each equation.

Can segments be parallel?

Select all the ordered pairs that are solutions to the equation 5x + 2y = - 8 Question 3 options: (1, - 2) (0, - 4) (4, - 14) (-85,0) ( - 8 5 , 0 ) (-4, 0)

So I got a question. If the store is 1 mile away, and the average human walks 5 miles an hour. Then why does it take my dad 15 years to get cigarettes?

Which monomials are perfect squares? Select three options. 0 6x2 gx8 16x9 25x12 36x16

A man wishes to cover his floor with tiles, each one measuring 3/4 inch by 2 inches. If his room is a rectangle, measuring 12 feet by 18 feet, how many such tiles will he need?

Consider this system of equations, where function f is quadratic and function g is linear: y = f (x) y = g (x) Which statement describes the number of possible solutions to the system? A. The system may have 1 or 2 solutions. B.

2X-20 Solve: 2x - 20 = 2x = 2x