A spherical balloon has a circumference of 21 cm. What is the approximate surface area of the balloon to the nearest square inch?

36/48 as a mixed number

Each week, Kathy receives a batch of phones that need repairs. The number of phones that she has left to fix at the end of each day can be estimated with the equation P =

Graph - 3x^2+12y^2=84. what are the domain and range? I already know the domain is all real numbers and the range is y≤-√7 or y≥√7 I just need to find out how you get to that.

Find the common ratior r for the geometric sequence and use r to find the next three terms. - 3, 9, - 27, 81,

If the sales tax for the city of Los Angeles is 9.75%, how much tax would you pay for an item that costs $200.00?

In a right triangle, a and b are the lengths of the legs and c is the length of the hypotenuse. If b = 77 centimeters and c = 85 centimeters, what is the perimeter? If necessary, round to the nearest tenth.

What are the first two terms of the sequence defined recursively by the formula an = (an-1) ^2+4 when a4=1604 A. 2, 8 B. 6, 40 C. D.

Erin filed for chapter 7 bankruptcy when she was 25 years old. How old will she be when the bankruptcy is removed from her credit report?

How many pairs of sides touch each other in a rectangle of 4 squares with 2 rows

Area of a regular polygon having 13 sides and side length 14 mm