Linear Equation (rule) y= 4x + 5

How many tiles would be in figures 5, 10, 20

Which expression is equivalent to (9x - 3 1/ + 1 3/8)

The dolphins at the webster are fed 1/2 of a bucket of fish each day the sea otters are fed 1/2 as much fish as the dolphins how many buckets of fish are the sea fed each day? simplify you answer and write it as a proper fraction or as a whole or mixed number

Yesterday i ran 5 miles. today, i ran 3.7 miles. did my percent increase, decrease or is it a percent error? plz i need