How many blue pens were there to start with?

46 blue pens nevermind I don't think that is the right answer

Step-by-step explanation:

70% of 250 = 175 so then

subtract 175 - 129 = 46

hope this helps

step-by-step explanation:

a rhombus is a parallelogram enjoying his symmetry.

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

answer:

f(5/2) = 10/3

i hope this you!