The circumference of a circle is 15.3mm. Find the length of the radius.
Give your answer rounded to 1 DP.

Astudent is solving a system of equations by substitution and comes up with the solution 3 = 3. assuming that he solved the problem correctly, which of the following can be said about this system of equations?

Stephanie runs three days a week. she ran 3 2/3 miles on monday , 4 1/5 miles on wednesday , and 2 2/9 miles on friday. how many miles did she run this week ?

13 is the same as 1÷3. what is the exact quotient in decimal form of 1÷3?