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?

Convert 24/3 to a decimal

Create a sketch of the graph of a function whose gradient is linear and that gradient has an x-intercept at x=4

4 = √6x+15-x how do you solve this

What is the common difference d of the sequence? 9, - 8, - 25, - 42, - 59, ...

In a certain year, the average email user sent or received 110 emails each day. the number of emails received was 2 more than twice the number sent. how many were sent and how many were received each day

Asher's sister is eight years older than asher. Their combined ages add up to 20. How old is asher?

Using properties to find the sum or product

I need to show work on elapsed time from 12:40 to 2:09

Round $6.4442 to the nearest cent.

Dave has $15 to spend on an $8 book and two birthday cards (c) for his friends. how much can he spend on each card if he buys the same card for each friend?