Our solar system is 1.18 × 1013 meters in diameter, and the milky way galaxy is 7.8 × 1020 meters in diameter. how many times wider is the milky way galaxy than our solar system? write your answer in scientific notation, and round the coefficient to the nearest tenth.

Which values for a and b will create infinitely many solutions for this system of equations? ax-y=8 2x+y=b

Tom wants to order tickets online so that he and three of his friends can go to a water park the cost of the tickets is 16.00 per person there is also a 2.50 one-time service fee for ordering tickets online write an expression in term of n that represents the cost for n ordering tickets online

Who long does it take to drive 150 miles at 45 miles per hour