Which expression is equivalent to 2(4x)? a.2 + 4x b.(2×4)x c.(2+4x) × (2 + 4x) d.(2 × 4) + (4 × 2x)?

Solve the given system of equations. 2y= -x+9 , 3x-6= -15

There are two major tests of readiness for college: the act and the sat. act scores are reported on a scale from 1 to 36. the distribution of act scores in recent years has been roughly normal with mean µ = 20.9 and standard deviation s = 4.8. sat scores are reported on a scale from 400 to 1600. sat scores have been roughly normal with mean µ = 1026 and standard deviation s = 209. reports on a student's act or sat usually give the percentile as well as the actual score. the percentile is just the cumulative proportion stated as a percent: the percent of all scores that were lower than this one. tanya scores 1260 on the sat. what is her percentile (± 1)?

Bill and felicia each bake cookies for a party. bill bakes 3 times as many cookies as felicia. felicia bakes 24 fewer cookies than bill. bill bakes b cookies and felicia bakes f cookies. what equation can represent this word problem