Students in a dance class filled out a survey. there were 25 girls and some boys who
participated in the survey. the results showed that 20% of the students prefer tap dance to
ballroom dance. there are 9 students who prefer tap dance. which equation can be used to
find the number of boys ( x) who participated in the survey?
a. 0.2 x + 25 = 9
b. 0.2( x + 25) = 9
c. 0.2(25 – 9) = x
d. 25 + x = 0.2 × 9

Maria walks a round trip of 0.75 mile to school every day. how many miles will she walk in 4.5 days

The area of a rectangle is 10 cm^2. one side of the rectangle is x cm. express the perimeter of the rectangle in terms of x and show that this rectangle cannot have a perimeter of 12 cm. the perimeter of the rectangle in terms of x is __ cm

Acoffee shop orders at most $3,500 worth of coffee and tea. the shop needs to make a profit of at least $1,900 on the order. the possible combinations of coffee and tea for this order are given by this system of inequalities, where c = pounds of coffee and t = pounds of tea: 6c + 13t ≤ 3,500 3.50c + 4t ≥ 1,900 which graph's shaded region represents the possible combinations of coffee and tea for this order?