How to write the sum of b and 10 is equal to 24

Adriano loves anime and collects toys from his favorite series.each month he gains 4 toys. if adriano has 3 toys when he starts collecting, how many does he have after 4 months

Scrub a dub toothbrushes are $4.00 each. there is a 10% discount, but there is also a 6% sales tax after the discount is applied. what is the new price after tax? round to the nearest penny

Paul’s car is 18 feet long. he is making a model of his car that is 1/6 the actual size. what is the length of the model?