3. Denise creates an equation that will allow ther to predicx the theight of the sunflower in the future, where s is the week and y is the holithe Which of the following gives the correct equation? (A) $$ y=0.85 x+2.15 $$ (B) $$ y=1.7 x+2.15 $$ (C) $$ y=0.8 .5 x+1.3 $$ D) $$ y=1.7 x+1.3 $$ If the sunflower continues to grow at the same rate, at what week rill it reach a height of 16.6 cm ? 1) Week 15 Week 17 Week 19

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**Step 1. Identify the Correct Equation**

Among the given options, the equation that correctly models the sunflower’s height is

$$
y = 0.85x + 2.15
$$

Here, $$x$$ (or $$s$$) is the number of weeks and $$y$$ is the height (in centimeters).

**Step 2. Find the Week When the Sunflower Reaches 16.6 cm**

We substitute $$y = 16.6$$ into the equation:

$$
16.6 = 0.85x + 2.15
$$

**Step 3. Solve for $$x$$**

Subtract $$2.15$$ from both sides:

$$
16.6 - 2.15 = 0.85x
$$

$$
14.45 = 0.85x
$$

Divide both sides by $$0.85$$:

$$
x = \frac{14.45}{0.85}
$$

$$
x = 17
$$

**Conclusion**

The correct equation is

$$
y = 0.85x + 2.15
$$

and the sunflower will reach a height of 16.6 cm in Week 17.
The correct equation is $$ y = 0.85x + 2.15 $$, and the sunflower will reach 16.6 cm in Week 17.

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