Extra points

what is the first step in solving 3.17t - 2.431 =5 .06 ?

a divide both sides of the equation by 3.17
b multiply both sides of the equation by 3.17
c add 2.431 to both sides of the equation
d subtract 2.431 from both sides of the 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.)

Yesterday i ran 5 miles. today, i ran 3.7 miles. did my percent increase, decrease or is it a percent error? plz i need

The area of square garden is 300m squared. how long is the diagonal?