1) Evaluate the following

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1) Evaluate the following. Write answers as fractions. a) (-4)3 b] -24 c) ( d) 5-2 e) (-12)0 f) 60 + 72 2. Simplify the following expressions, writing answer as a single positive power. (Do not evaluate) a) (93) (9) (92) b) (3 5) (32 ) d) (34) 5 f) ( 6-7) 3 3. Complete the table d values below for the relation y = 2.8*. Round answers to 2 decimal places. (Use your calculator) X N

4. Circle the following exponential relations that would have a curve steeper than y = 2.8*. There is more than one answer. a) y = 0.8x bj y = 2.9* c) y = ( d) y - 9) 5. Circle the following exponential relations that would be decreasing. There is more than one answer. e) y = 0.8x f) y = 2.9x g) y = ( h) y = () 6. The population of a small town is represented by the formula P = 12500(0.98)' where P is the number of people and t is time in years. a) Is the town's population increasing or decreasing? Explain how you know. b) What is the initial population of the town? c) In terms of percentage, how is the town's population changing each year? d) Determine the population of the town 10 years from now. Round answer to nearest whole person. e) A town just down the road has the same initial population, and is expected to grow by 5% each year. Determine the population in 10 years.