At the first track meet, Bobby threw the shot put feet. At the second track meet he threw the shot put feet. Which of the following expressions could be used to find the distance he improved his throw from the first track meet to the second track meet?

A. | 42 3/4 + 44 1/2 |

B. | 42 3/4- (-44 1/2 |

C. | 44 1/2- ( -42 3/4

D. | 42 3/4 - 44 1/2 |

Find the difference (8ab+a+2) - (3ab+6)

Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?

Which best describes the construction of a triangle if given the segment lengths of 2 cm, 3 cm, and 5 cm? a) unique triangle b) cannot be determined c) triangle not possible d) more than one triangle