The population of a certain city be modeled by y=7870(1.01)^x where x is the number of years since the city was founded and y is the population. What does the y-intercept of this function represent?

What is the standard deviation of the following data set rounded to the nearest tenth? 3, 17, 18, 15, 12, 21, 9

If x is 6, then 7x= a. 13 b. 42 c. 42x d. 76

Beth divided 9 ounces of her granola recipe into 4 equal-sized amounts. she placed the amounts into individual bowls. the fraction 9/4 represents the number of ounces of granola in each bowl. which other number represents the amount of granola beth has in each bowl? (a) 1 1/4 (b) 2 1/4 (c) 1 3/4 (d) 3 3/4 i need !