With this trig question. how do you solve this?

Basically what you need to do is add up the expressions, 7x and 3x and make it equal to 90 degrees. Then solve for x. Substitute the value of x for each expression to determine the values of each angle.

7x + 3x = 90
10x = 90
X = 90/10
X = 9.

Angle 1 = 7(9) = 63 degrees
Angle 2 = 3(9) = 27 degrees.

Check
63 + 27 = 90
90 = 90.

A village normally generates up to 70 blocks and lowest at 40 blocks