The area of a circular sun spot is growing at a rate of 600 km2/sec.

(a) How fast is the radius growing at the instant when it equals 4,000 km?

A waitress who worked k hours earned $32 in tips. She gets an additional salary of $4.50 per hour. Write an algebraic expression to find the amount she earned.

How to simplify X (2X+y) + 10

What is the answer to 7x4

What is 2:1/3 I don't understand?

With her new promotion nickis salary increases from 10.00 and hour to 13.50 an hour. what is the peecent of increase rounded to the nearest rounded to nearest whole number

A 2-parent family with 2 children lives in Lubbock. The family is saving for college and emergencies, but pays for its own health insurance.

Explain how the vertical line test is used to determine whether a graph represents a function

How would a virus impact the economy of medical products such as hand sanitizer?

Is this a solution? What makes this a solution is if both equations equal the same answer. 3x+y=11 and x-2y=6 Solution: (4,-1) Is it a solution?

On a very cold morning, it was - 8°F. As the day went on, the temperature rose 2 degrees each hour. Which equation shows the temperature over time? A. y = - 2x + 8 B. y = - 2x - 8 C. y = 2x + 8 D. y = 2x - 8