Acoral reefs grows 0.17 m every week. how much does it grow in 7 weeks?

[15 points]find the least common multiple of the expressions: 1. 3x^2, 6x - 18 2. 5x, 5x(x +2) 3. x^2 - 9, x + 3 4. x^2 - 3x - 10, x + 2 explain if possible

In a two-digit number the units' digit is 7 more than the tens' digit. the number with digits reversed is three times as large as the sum of the original number and the two digits. find the number.

Shannon drove for 540 minutes. if she traveled 65 miles per hour,how many total miles did she travel?