Add and round to the correct number of significant digits: 13.8 + 60 a.70 b.73 c.73.8 d.4.75

Tom wants to order tickets online so that he and three of his friends can go to a water park the cost of the tickets is 16.00 per person there is also a 2.50 one-time service fee for ordering tickets online write an expression in term of n that represents the cost for n ordering tickets online

Alex measured the length of an item to be 3.7 cm. the actual length is 3.5 cm. what is alex’s percent error?

Calculate the effective quarterly compound interest rate equivalent to a 1% of monthly compound interest rate.