7. 70% of what number is 112

(hurry! ) which expression is equivalent to the following complex fraction?

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.

Which number is located at point a on the number line? a number line is shown from negative 10 to 10 with each interval mark on the number line representing one unit. point a is labeled one interval mark to the right of negative 5.