A teacher took a poll of a class to find out if the students Preferred cats or dogs .the ratio of students who prefer cats vs. students who prefer 2:5 if there are 49 students in the class how many more prefer dogs than cats ??

Organic apples are on special for $1.50 per pound. does total cost vary inversely or directly with the number of pounds purchased? find the cost of 3.4 pounds of apples. a. inversely: $5.10 b. directly; $5.10 c. inversely: $2.27 d. directly; $2.27

Which statement is true about a number and its additive inverse? a. their product is always one. b. their sum is always one. c. they are always reciprocals of each other. d. their sum is always zero.

Which equation can be used to measure the density of water in a spherical water tank? let w represent the number of water particles within the region.