What is the term to term rule: 21, 17, 13, 9, 5, 1

Draw a figure strategy a snail is at t bottom of a 10 ft wall. Each day it climbs up 3 ft. Each night it slides down back 1 ft. On which day will it reach to the top of the wall

Two boats started to move towards each other from two docks, located 30 miles apart. One boat moved at a speed of 2.5 miles per hour, the other moved twice as fast. How soon will the boats meet?

Find the value of n such that np5=42np3, n>4

Company A sold 6,028,468 cans of corn during the last three months. What is the value of the digit 4 in the number 6,028,468?

Refer to the table, Population of 50 US States and DC in 2010^14. The mean state population was 6,053,834 (including DC as a "state"). How many states had a population greater than the mean?

Multiples of 20,25 and 40

Rewrite the product as a power ... a^7*y^7

Find that 10th term of each arithmetic sequence 1). A4=12 and A7=20.4 2.) A3=37 and A17=-12 3.) A13=-5 and A18=-51 4.) A25=18 and A41=62

If 9 students sharpen 18 pencils in 2 minutes, how many students will it take to sharpen 18 pencils in 1 minute? A.) 2 B.) 9 C.) 18 D.) 36 i'm sure it is C but i might be wrong, am i right?

Simplify. (-28xy) : (-4) - 7xy 7xy