Asecurity business invoices its 30,800 customers on the first day of each month, with each of two computers doing half the job. one invoicing machine produces at the rate of 7,700 per hour, and the other at the rate of 6,800 per hour. when the first computer finishes its run, how many invoices did the second computer still need to produce?

Choose all the answers that apply. our solar system: is in a spiral galaxy no longer includes pluto is made mostly of empty space is in the andromeda galaxy is the only known system that supports life

The pressure proportional to the area a- inversely b- directly c- increase d-decrease

Acarpenter builds an exterior house wall with a layer of wood 2.9 cm thick on the outside and a layer of styrofoam insulation 2.3 cm thick on the inside wall surface. the wood has k=0.080w/(m⋅k), and the styrofoam has k= 0.010 w/(m⋅k). the interior surface temperature is 19.0 ∘c , and the exterior surface temperature is -15.0 ∘c . a.)what is the temperature at the plane where the wood meets the styrofoam? celsius b.)what is the rate of heat flow per square meter through this wall? /m^2