4. Kelly bought a total of 30 game cards some of which cost $0.45 each and some of which cost $0.60 each. If Kelly spent $16.05 to buy these cards, how many cards of each type did he buy? write the lease number first, use a comma with no space.

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Sarah used her calculator to find sin 125 degrees. she wrote down sin sin125 degrees.57. how could sarah recognize that her answer is incorrect?

9/10 divide by -3/15 as a mixed number

The fraction of defective integrated circuits produced in a photolithography process is being studied. a random sample of 300 circuits is tested, revealing 17 defectives. (a) calculate a 95% two-sided confidence interval on the fraction of defective circuits produced by this particular tool. round the answers to 4 decimal places. less-than-or-equal-to p less-than-or-equal-to (b) calculate a 95% upper confidence bound on the fraction of defective circuits. round the answer to 4 decimal places. p less-than-or-equal-to