Find the value of 21 + 4(3/\2 - 5). the two after the three is an exponent.

First. distribute and multiply the the 4 to the 3^2 and the -5
so then it becomes 21+ 36 - 20
second. add and subtract that
answer is: 37

Use PEMDAS - order of operations

First work out the the parentheses:-
21 + 4(3^2 - 5)
= 21 + 4(9 - 5)
= 21 + 4*4                           Now the multiplication:-
=  21 + 16
= 37

What class is this? i have no idea and i'm not going to give you the wrong answer. do you have a graph that goes with all the questions