Which expressions are equivalent to -90-60w? 90? 60wminus, 90, minus, 60, w? choose 3 answers: choose 3 answers: (choice a) a {-30}(3+2w)? 30(3+2w)minus, 30, left parenthesis, 3, plus, 2, w, right parenthesis (choice b) b (-9-6w)\cdot 10(? 9? 6w)? 10left parenthesis, minus, 9, minus, 6, w, right parenthesis, dot, 10 (choice c) c -3(30-20w)? 3(30? 20w)minus, 3, left parenthesis, 30, minus, 20, w, right parenthesis (choice d) d (6+4w)\times15(6+4w)×15left parenthesis, 6, plus, 4, w, right parenthesis, times, 15 (choice e) e -20(4.5+3w)? 20(4.5+3w)

Twenty points. suppose that one doll house uses the 1 inch scale, meaning that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. if the doll house is 108 inches wide, what is the width of the full-sized house that it's modeled after? in inches and feet

In one day there are too high tides into low tides and equally spaced intervals the high tide is observed to be 6 feet above the average sea level after six hours passed a low tide occurs at 6 feet below the average sea level in this task you will model this occurrence using a trigonometric function by using x as a measurement of time assume the first high tide occurs at x=0. a. what are the independent and dependent variables? b. determine these key features of the function that models the tide: 1.amplitude 2.period 3.frequency 4.midline 5.vertical shift 6.phase shift c. create a trigonometric function that models the ocean tide for a period of 12 hours. d.what is the height of the tide after 93 hours?

Your friend uses c=50p to find the total cost, c, for the people, p, entering a local amusement park what is the unit rate and what does it represent in the context of the situation?