Which of the following uses a variable to represent a person a place or thing that is unknown

Susan's insurance company for 70% of her shoulder surgery, after she pays a $1000 deductible? How much will Susan pay for her surgery if it costs $12,400 A.$4720 B.$4420 C.$3720 D.$3420

Describe in words the surface whose equation is given. φ = π/4 (select the correct answer) 1) the top half of the right circular cone with vertex at the origin and axis the positive z-axis 2) the plane perpendicular to the xz-plane passing through z

What is the positive solution to the equation 0 equals negative x squared plus 2 x plus 1

Which of the following statements must be true about the polynomial function f (x) ? lf 1 13 is a root of f (x), then-1 - 13 is also a root of f (x) 13i is also a root of f (x) lf 1 13i is a root of f (x), then 1If 13 is a root of f (x), then - 13

A student has a monthly budget of $120 to spend on either burritos, which cost $6 each, or sodas, which cost $4 each. What is the largest number of burritos that a student could afford to purchase in one month?

How many indian rupees. Do you receive when exchange 13$

For the following exercises, write the interval in set-builder notation 10. (-infinity, 6) 11. (4, infinity) 12. [-3,5) 13. [-4,1]U[9, infinity) 14. (-infinity, infinity)

Gary needs to solve 120 problems by a certain day. He calculated, that to finish all the problems in time, he needs to solve 5 problems every day. But Gary's family is going on a trip, and for 4 days Gary will simply have no time to do math.

Complete the statement with equal to, greater than, or less than 7/8*6/6 will be __7/8?

4.2x10^6+2.25x10^5+2.8x10^6