Katie is working on a math worksheet with 50 problem. she has completed 20 problems in 25 minutes. if she continues at the same place, what will her total time be for her to complete the worksheet?

Her total time will be 62 minutes 30 seconds.

Step-by-step explanation:

25/20 = 1.25 minutes per problem

1.25 x 50 = 62.5  (1/2 of a minute is 30 seconds)

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.

it is a. 4.2 because 7.6-3.4 gets the remaining length of 4.2. i might be wrong but i am pretty sure this is the answer.