Evaluate each of the expressions below using the given value.

[tex]\frac{2a}{3} +13, \:a=15[/tex]
Step 1: Substitute [tex]a[/tex] for 15
[tex]\frac{2(15)}{3} +13[/tex]
Step 2: Solve
15 × 2 = 30
[tex]\frac{30}{3} +13[/tex]
30 ÷ 3 = 10
[tex]10 +13[/tex]
10 + 13 = 23
The evaluation of the expression is 23.