Naya is four less than twice her brother's age. Naya is eighteen years old. Which equation can we use to solve for her brother's age?

- 4x + 2 = 18
- 4x - 2 = 18
- 2x + 4 = 18
- 2x - 4 = 18

"you know, playing tennis is healthier than watching a tennis match on television," katya remarked to her couch potato brother. in this sentence, healthier is a/an a. superlative. b. comparative. c. positive form. d. adverb.

It is saturday morning and jeremy has discovered he has a leak coming from the water heater in his attic. since plumbers charge extra to come out on the weekends, jeremy is planning to use buckets to catch the dripping water. he places a bucket under the drip and steps outside to walk the dog. in half an hour the bucket is 1/5 of the way full. what is the rate at which the water is leaking per hour?

Find the nonpermissible replacement for binthis expression.b2/5b +5