Answer:
Hope this helps!
Step-by-step explanation:
12% of 75 would be 9
Answer:
1/2a-19=-13
Step-by-step explanation:
One half of a number represents the phrase "1/2a" (in this case the variable/number is 'a'". Then because it says "nineteen less than", that means you subtract 19 from one half of the variable.
83 and 89 are prime numbers between 80 and 90.
