The population of spain is 47,042,000. the population of romania is 21,400,000.

round each number to the nearest ten million.

what is the combined population of the two countries?

a.
60,000,000

b.
68,000,000

c.
68,300,000

d.
70,000,000

Find the slope of a line given the following two points

The weight of full–grown tomatoes at a farm is modeled by a normal distribution with a standard deviation of 18.4 grams. the 95 percent confidence interval for the mean weight of the tomatoes is calculated using a sample of 100 tomatoes. what is the margin of error (half the width of the confidence interval)?

Sketch one cycle if the cosine function y=2cos2theta