Round 27.7 to the underlined place value the under lined place value is 7

Which expression is equivalent to (3^2)^-2 a.-81 b.-12 c.1/81 d.1/12

If 20% of a number is 35, what is 50% of that number?

The probability that you roll a two on a six-sided die is 1 6 16 . if you roll the die 60 times, how many twos can you expect to roll