What is the sum or difference?

(2m+7) - (3-4m)

2/3 (6c+4) - (8c-5)

How to do 4x=3y-7 and x=4

Estimate then find the sum 323+151

Sammy has a hamster, Chipper. In Chipper's cage is a hamster wheel with a diameter of 6 inches and it takes 3 seconds to make a full revolution. The wheel has a little dented spot from when Sammy dropped it once.

Hitomi has a bag with four chips in it numbered 1 to 4. She randomly draws a chip and replaces it three times. What is the probability that Hitomi will draw a 1 all three times?

Akira used 10 centimeters to wrap 5 presents. How many presents did Akira wrap if she used 18 centimeters of tape? Solve using unit rates.

What is the y-intercept of y=-2x+6y=-2x+6y, equals, minus, 2, x, plus, 6?

Dan Used a meter stick to measure some seedlings in his garden. One day, a corn stalk was 0.85 m tall. A tomato plant was 0.850 m. A carrots top was 0.085 m. Which plant is the shortest

How many ways can the manager of a baseball team put together a batting order of his nine players, if the shortstop must bat 3rd?

How to solve the equation 9x squared = 49 by factoring

Bug zapper #1 zapped a fair number of bugs, but Zapper #2 zapped 22 more. Zapper #3 zapped 45 more bugs than #2 did. If all three zappers zapped 398 bugs in total, how many were zapped by #1 alone?