The problem asks us to find the value of the variables in the given equations. We need to solve for $y$ in the equation $8y + 4 = 28$, for $m$ in the equation $m/5 = 9$, for $t$ in the equation $11 + t = 20$, for $m$ in the equation $5m + 6 - 2m = 21$, and for $f$ in the equation $5f + 8 = 50$.

1. Problem Description

The problem asks us to find the value of the variables in the given equations. We need to solve for $y$ in the equation $8y + 4 = 28$, for $m$ in the equation $m/5 = 9$, for $t$ in the equation $11 + t = 20$, for $m$ in the equation $5m + 6 - 2m = 21$, and for $f$ in the equation $5f + 8 = 50$.

2. Solution Steps

* Problem 1: $8y + 4 = 28$

Subtract 4 from both sides of the equation:

$8y = 28 - 4$

$8y = 24$

Divide both sides by 8:

$y = \frac{24}{8}$

$y = 3$

* Problem 2: $11 + t = 20$

Subtract 11 from both sides of the equation:

$t = 20 - 11$

$t = 9$

* Problem 3: $\frac{m}{5} = 9$

Multiply both sides of the equation by 5:

$m = 9 * 5$

$m = 45$

* Problem 4: $5m + 6 - 2m = 21$

Combine like terms:

$3m + 6 = 21$

Subtract 6 from both sides of the equation:

$3m = 21 - 6$

$3m = 15$

Divide both sides by 3:

$m = \frac{15}{3}$

$m = 5$

* Problem 5: $5f + 8 = 50$

Subtract 8 from both sides of the equation:

$5f = 50 - 8$

$5f = 42$

Divide both sides by 5:

$f = \frac{42}{5}$

$f = 8.4$

3. Final Answer

1. $y = 3$

2. $t = 9$

3. $m = 45$

4. $m = 5$

5. $f = \frac{42}{5}$ or $f = 8.4$