PLS SOMEONE HELP ASAP!! Instructions for a craft project say that the length of a piece of red ribbon should be 7 inches less than the length of a piece of blue ribbon.

How long is the blue ribbon if the red ribbon is 12 inches?
*working backwards ;)

How many degrees does the hour hand move from 3: 00 to 5: 30?

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply

Which statements describe the solutions to the inequality x< -20 check all that apply. there are infinite solutions. each solution is negative. each solution is positive. the solutions are both positive and negative. the solutions contain only integer values. the solutions contain rational number values.