Luci and her friends go out to lunch and receive a bill for their meals that reads $56.80. How much would the entire lunch cost if they added a 19% tip to their bill rounded to the nearest cent? How much money would the
server make? Show your work using either a double number line and/or the percent equation.

Use the frequency distribution, which shows the number of american voters (in millions) according to age, to find the probability that a voter chosen at random is in the 18 to 20 years old age range. ages frequency 18 to 20 5.9 21 to 24 7.7 25 to 34 20.4 35 to 44 25.1 45 to 64 54.4 65 and over 27.7 the probability that a voter chosen at random is in the 18 to 20 years old age range is nothing. (round to three decimal places as needed.)

If square root x = -7, then x= -49 true or false

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1