Laura answered 27 questions correct on a test on her test and scored 90%. How many questions where on the test?

Dylan and dusty plan to take weekly surfing lessons together. if the 2-hour lessons are $20 per person and they plan to spend $100 each on new surfboards, what is the maximum number of lessons the two can take if the total amount spent for lessons and surfboards is at most $480?

What is the value of x when x + 7 = 21?

Use a transformation to solve the equation. w/4 = 8 can you also leave a detailed explanation on how this equation = 32