A fire alarm rings 20 times. It pauses for 1 second between rings. Each ring is 3 seconds long. How long does the ringing last? a. 60 seconds b. 79 seconds c. 68 seconds d. 80 seconds

Secant be and cf intersect at point d inside a what is the measure of cde

He ! a group of farmers planned to clean 80 acres of wheat per day to finish the work on schedule. right before the work started, they received a new piece of machinery that them clean 10 more acres per day than originally planned. as a result of increased productivity in the last day before the deadline they only had to clean 30 acres. how many acres of wheat did the group of farmers have to clean?

The figure shows the front side of a metal desk in the shape of a trapezoid. what is the area of this trapezoid? 10 ft²16 ft²32 ft²61 ft²