Choose Yes or No to tell whether the expression represents a 20% discount off the price of an item that originally cost d dollars. 1. 0.8d yes or no

2. d – 0.2 yes or no

3. d – 0.2d yes or no

4. 1 – 0.2d yes or no

HELPPP

If 1 is divided by the sum of y& 4. the result is equal to 3 divided by 4 .find the value of m?

Consider the system: y = 3x + 5 y = ax + b what values for a and b make the system inconsistent? what values for a and b make the system consistent and dependent? explain

Ascientist has discovered an organism that produces five offspring exactly one hour after its own birth, and then goes on to live for one week without producing any additional offspring. each replicated organism also replicates at the same rate. at hour one, there is one organism. at hour two, there are five more organisms. how many total organisms are there at hour seven? 2,801 19,531 19,607 97.655