When measuring the level of water in a river, +3 means a rise of 3 feet in the level of the water, and -3 means a
drop of 3 feet in the level of water.
a. use a complete sentence to describe what 21-3) means in the context of this problem.
b. calculate 21-3) and write a sentence describing what the answer means in the context of this problem.

Which best describes the strength of the correlation, and what is true about the causation between the variables? it is a weak negative correlation, and it is not likely causal. it is a weak negative correlation, and it is likely causal. it is a strong negative correlation, and it is not likely causal. it is a strong negative correlation, and it is likely causal.

Two blends of tea are mixed to make a blend that will be sold at the fair. black tea sells for $2.20 per pound and orange pekoe tea sells for $3.00 per pound. how much of each should be used to obtain a 4lb blend selling for $2.50 per pound?

If the measure of angle 1 is 110 degrees and the measure of angle 3 is (2 x+10 degree), what is the value of x?