A box contains blue, red, and green pens. 25% of the pens are green and 35% are red. 48 blue pens cannot be used, but the remaining 40% of the blue pens are usable

How many blue pens are there?

How many pens are there altogether in the box

number of blue pen = 128

Number of pen in the box = 320

Step-by-step explanation:

Number of blue pen is 80

Total number of all pens(green,blue and red) is 200

Step-by-step explanation:

A detailed look at the attached image would provide a proper explanation.

a complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is a solution of the equation x2 = −1. because no real number satisfies this equation, i is called an imaginary number. has no real solution, since the square of a real number cannot be negative.

could

step-by-step explanation:

u send me a picture of ur work