To solve the problem. A Jar contains n nickels and d dimes. There are 22 coins in the jar, and the total value of the coins is $1.40. How many nickels and how many dimes are in the jar?

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?

Mario is constructing a frame for 10 in. by 8 in. photo. he wants the frame to be the same with all the way around in the same area of the frame and photo to be 120 square inches what is the dimension of the frame?

Present age of man is 45 years, 5 years back his age was 4 times age of his son what is present age of his son?