Jack can program an app in 7 hours. Chris can program the same app in 8 hours. How long would it take them to program the same app working together hours.

Which matrix multiplication is possible?

There are 93 calories in a small candy bar how many calories are ther in a half dozen small candy bars?

Solve these problems: 1.what is the perimeter of an equilateral triangle with sides measuring 6cm? 2. a regular pentagon has sides measuring 3.2 cm. what is its perimeter? 3. a regular decagon has sides of 3.5mm . what is it’s perimeter? 4. a regular octagon has a perimeter of 64cm. what is the length of one of the sides? 5. a regular hexagon has a perimeter of 72mm . what is the length of one of the sides? 6. what is the perimeter of a rhombus with sides measuring 11m?