11. Simplify each expression. Express each answer with a positive exponent. 3 a) (5-0.5) 4 b)...

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11. Simplify each expression. Express each answer with a positive exponent. 3 a) (5-0.5) 4 b) 2.80.4 2.82 c) (27x-2) -2 15. Jessica invested $1500 in an account that increases in value at a rate of 3.25% annually. The value of the account can be determined using the formula A=1500(1.0325), where A is the total value of the investment and is the number of years. What is the value of Jessica's account at the end of three years? 16. The students in a grade 10 class are making T-shirts for a fundraiser. The cost of the ink needed to print T-shirts can be determined using the equation C=5.75n4+ 60, where n is the number of T-shirts. Determine the cost of the ink needed to print 350 T-shirts. 11. Simplify each expression. Express each answer with a positive exponent. 3 a) (5-0.5) 4 b) 2.80.4 2.82 c) (27x-2) -2 15. Jessica invested $1500 in an account that increases in value at a rate of 3.25% annually. The value of the account can be determined using the formula A=1500(1.0325), where A is the total value of the investment and is the number of years. What is the value of Jessica's account at the end of three years? 16. The students in a grade 10 class are making T-shirts for a fundraiser. The cost of the ink needed to print T-shirts can be determined using the equation C=5.75n4+ 60, where n is the number of T-shirts. Determine the cost of the ink needed to print 350 T-shirts.