Answer:
![S = 3 h](https://img.qammunity.org/2021/formulas/mathematics/college/vsgwur3ki1p7ceswql7kv8fy0aw6f180w7.png)
Explanation:
Let M represent Michaela hair tier and S represents Michaela sister's
Given
M = h
S = Triple of M
Required
Determine an expression for S
From the given parameters, we have that;
S = Triple of M
Mathematically, this implies;
![S = 3 * M](https://img.qammunity.org/2021/formulas/mathematics/college/vp8o1ds7nhpkektxmvtaow1z1t5t6e59b5.png)
Substitute h for M
![S = 3 * h](https://img.qammunity.org/2021/formulas/mathematics/college/5va12sceoo30k5m68v9u2cs0byxy143mdu.png)
![S = 3 h](https://img.qammunity.org/2021/formulas/mathematics/college/vsgwur3ki1p7ceswql7kv8fy0aw6f180w7.png)
Hence, the expression for Michaela sister' is
![S = 3 h](https://img.qammunity.org/2021/formulas/mathematics/college/vsgwur3ki1p7ceswql7kv8fy0aw6f180w7.png)