Identify if this question has one solution, infinitely many solution or no solution -3x+1=x+9-4x

Amuffin recipe, which yields 12 muffins, calls for cup of milk for every 1 cups of flour. the same recipe calls for cup of coconut for every cup of chopped apple. to yield a batch of 30 muffins, how much flour will be needed in the mix?

Evaluate the expression for the given value of the variable. 5×(h+3) for h=7

Write the fraction 9/50 as a decimal if needed round to the nearest hundredth