What value of x satisfies the equation 4x+0.2=3

What is the smallest integer n such that n\sqrt{2} is greater than 20

This summer the number of tourists in salem increased 4.5% from last years total of 426000. how many more tourists came to salem this summer

Isabelle is mixing red and blue paint to make purple paint she adds 3/10 of a fluid ounce of red to 12/25 of a fluid ounce of blue to make 1 1/30 fluid ounces of purple how many fluid ounces of red paint ounces of red paint will she need to make 3 fluid ounces of purple paint