Amodel for the product of two numbers is shown below. each large rectangle represents one whole.

which expression does this model represent?
a. 0.6 × 4.0
b. 0.6 × 0.4
c. 6.0 × 0.4
d. 6.0 × 4.0

Find the x-intercept and y-intercept of the line. 3x + 5y = −15

Sam is a waiter at a local restaurant where he earns wages of $5 per hour sam figures that he also eams about $3 in tips for each person he serves sam works 6 hours on a particular day. if n represents the number of people sam serves that day, which of the following functions could sam use to figure ehis total earings for the do o a. en) = 30 o b. en) = 5n+ 18

Gravel is being dumped from a conveyor belt at a rate of 25 ft3/min, and its coarseness is such that it forms a pile in the shape of a cone whose base diameter and height are always equal. how fast is the height of the pile increasing when the pile is 14 ft high? (round your answer to two decimal places.) ft/min