Aglobe has a diameter of 18 in. what is the surface area of the globe to the nearest square inch?
a. 108 in2
c. 1,018 in2
b. 285 in2
d. 2,216 in2

Describe in detail how you would construct a 95% confidence interval for a set of 30 data points whose mean is 20 and population standard deviation is 3. be sure to show that you know the formula and how to plug into it. also, clearly state the margin of error.

Evaluate the expression for the given value of the variable 7a - 4a for a =8

11. a particular type of cell doubles in number every hour. which function can be used to find the number of cells present at the end of h hours if there are initially 4 of these cells? a. n = 4 ()" b. n = 4(2)" c. n = 4 + (2)" din = 4 +"