19. Helen has 2 more than twice as many stamps as Gail. If Gail buys 10 more stamps, she and Helen will have the same
number of stamps. How many stamps does each person have
now?

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels

Select the correct answer from each drop-down menu. the table shows the annual sales revenue for different types of automobiles from three automobile manufacturers. sales revenue (millions of dollars) suv sedan truck marginal total b & b motors 22 15 9 46 pluto cars 25 27 10 62 panther motors 26 34 12 72 marginal total 73 76 31 180 the company with the highest percentage of sales revenue from sedans is . of the annual sales revenue from suvs, the relative frequency of pluto cars is .

One number is 4 less than 3 times a second number. if 3 more than two times the first number is decreased by 2 times the second number, the result is 11. use the substitution method. what is the first number?