Alonso purchases a kayak for $2100. The sales tax is 7% of the cost of the kayak. Find the total cost, including tax, of Alonso’s purchase.

Rounding decimals is very similar to rounding other numbers. if the hundredths and thousandths places of a decimal is forty-nine or less, they are dropped and the tenths place does not change. for example, rounding 0.843 to the nearest tenth would give 0.8. , your welcome !