Need screenshot of the question is attatched!

78 pounds

Step-by-step explanation:

Let a and b represent the numbers of pounds of the respective coffee types used. Then the following equations can be written from the problem statement:

... a + b = 132

... 5.65a + 4.15b = 628.80

We can subtract the second equation from 5.65 times the first to eliminate a.

... 5.65(a + b) - (5.65a +4.15b) = 5.65(132) - (628.80)

... 1.50b = 117.00

... b = 117.00/1.50 = 78

Aldo used 78 pounds of type B coffee in his mix.