What is the smallest power of 10 that would exceed 987,654,321,098,765,432

What should be done to solve the equation? x+14=21 add 14 to both sides of the equation. subtract 14 from the left side of the equation. add 14 to the left side and subtract 14 from the right side of the equation. subtract 14 from both sides of the equation.

Sara made $253 for 11 hours of work. at the same rate how much would he make for 7 hours of work?

Which pair of numbers is relatively prime? a. 105 and 128 b. 130 and 273 c. 205 and 350 d. 273 and 333