If a x b express 12x(10x5)in simplest form

Convert 16 yards to feet use the conversion rate 3 feet = 1 yard

What expression is equivalent to log3(x+4)

If you can solve all of these i will give ! - 4% of 190 - 4% of 162.5 - 4% of 140 - a 4% increase from 155.1 - a 4% increase from 159.8