Under her cell phone plan, Lily pays a flat cost of $55.50 per month and $4 per gigabyte. She wants to keep her bill at $63.10 per month. Write and solve an equation which can be used to determine xx, the number of gigabytes of data Lily can use while staying within her budget.

To solve the system of equations below, grace isolated the variable y in the first equation and then substituted into the second equation. what was the resulting equation? 3y=12x x^2/4+y^2/9=1

Find the value. a. 0.003 b. 0.03 c. 0.3 d. 3

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