Can someone please tell me if this is correct btw i am in 5th grade not college

1.35 + 0.12 = 1.47 : 1.47 < 1.5

International calls require the use of a country code. many country codes a 3-digit numbers. country codes do not begin with a 0 or 1. there are no restrictions on the second and third digits. how many different 3-digit country codes are possible?

What are the solutions of the system? solve by graphing. y = x^2 + 3x + 2 y = 2x + 2

Traffic on saturday, it took ms. torres 24 minutes to drive 20 miles from her home to her office. during friday's rush hour, it took 75 minutes to drive the same distance. a. what was ms. torres's average speed in miles per hour on saturday? b. what was her average speed in miles per hour on friday?