8. a kayaker spends 2 hours paddling up a
stream from point a to point b, quickly turns
her kayak around, and immediately heads
back downstream. it takes her only 1 hour to
float back down the stream from point b to
point a. if points a and b are 6 miles apart,
what was the kayaker's average rate of
speed in miles per hour?
a. 12 mph
b. 6 mph
c. 4 mph
d. 2 mph

.

Perform the indicated operation. 8/a - 6/a + 7/a

Afurniture manufacturer produces chairs and sofas. each chair requires 10 yards of fabric, and each sofa requires 20 yards of fabric. the manufacturer has 300 yards of fabric available. to fulfill orders, the number of sofas must be at least twice the number of chairs. let x be the number of chairs and y the number of sofas. which inequalities are described in the problem? check all of the boxes that apply

Agarden consists of an apple tree, a pear tree, cauliflowers, and heads of cabbage. there are 40 vegetables in the garden. 24 of them are cauliflowers. what is the ratio of the number of cauliflowers to the number of heads of cabbage?