Answer:
5
Step-by-step explanation:
The cube root of a number is a number that, when multiplied by itself twice, equals the number in the cube root.
So, the cube root of 343 is 7 because 7 * 7 * 7 = 343.
Now the expression looks like: 7 + 
![\sqrt[3]{-8}](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B-8%7D)
The cube root of -8 is -2 because -2 * -2 * -2 = 8
Now the expression is: 7 +
(-2)
3/4 * -2 = -6/4, or -1 and 1/2
7 - 1 1/2 = 5 and 1/2