The high temperature for a day in January is 7°F the low temperature that day was "-5°F" what is the difference in temperatures

Find the measure of the interior angles of the following regular polygons: a triangle, a quadrilateral, a pentagon, an octagon, a decagon, a 30-gon, a 50-gon, and a 100-gon.

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

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.