1. Calcula el valor numèric de 6x – 3 per a:
a) x = 1 b) x = 2 c) x = -1 d) x = -3

What is the exact area of a circle with a diameter of 50 centimeters? a.87.9 square centimeters b.379.9 square centimeters c.1962.5 square centimeters d.4923.5 square centimeters

Select the correct answer. joshua likes to read. he read 6 books when he was 6 years old. every year he doubled the number of books he read the previous year. how many total books did he read between the ages of 6 and 10? a. 60 b. 90 c.186 d.187

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?