Two members of the powerwalking team are walking after work for
exercise. Both runners start at the
same location. Amanda started late
and has only walked one mile so
far but she is walking at a pace of 2
miles per hour. Bethany had a head
start and has walked five miles
already but she is only walking at a
slow pace of 1 mile per hour.
O

The diameter of a ball is 8 in. what is the volume of the ball? use 3.14 for pi. enter your answer as a decimal in the box. round only your final answer to the nearest hundredth.

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?

X+y=-4 x-y=2 use elimination with adding and subtraction