Calcule o valor da expressão abaixo

a) (1/3 + 1/2) - (5/6 - 3/4) =

Using two or more complete sentences, describe how you can find a vector parallel to b=-2,3

The size of a certain cell is 2.5*10^-9m. another cell is 1.5*10^3 times larger. how large is the larger cell in scientific notation?

It takes jonas 7 1/4 minutes to run the mile. it takes mario 8 5/12 to run the mile. how much faster is jonas than mario? 5/6 minute 1 1/3 minutes 1 1/6 minutes 1 1/2 minutesi will give points and brainlest