Please help asap this is for a test and their are only 10 minutes left

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Step-by-step explanation:

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x=30

The angle EMB is a right angle since EMA is a right angle and both angles are on a straight line (90 +90 =180 degrees).

Step-by-step explanation:

x+8+2x-8=90

3x=90

x=30

4 & 3

step-by-step explanation:

factor of 108=2×2×3×3×3=2×2×3^3=the number is 4 because 2 only occurs 2 times and 2×2=4 and factor of 2187=3^3×3^3×3=the number is 3 because 3 onlyvoccur 1 time.