SAT Math: Solve for the Variable 3

1. If $\dfrac{x}{y} = 4$ , what is the value of $\dfrac{8y}{x}$ ?

$0$

$1$

$\dfrac{1}{2}$

$2$

2. A food truck sells burgers for $5.50 each and drinks for $1.50 each. The food truck's revenue from selling a total of 260 burgers and drinks in one day was $894. How many burgers were sold that day?

$72$

$99$

$126$

$130$

3. If $y=kx$ , where $k$ is a constant, and $y=64$ when $x=4$ , what is the value of $y$ when $x=7$ ?

$28$

$47$

$92$

$112$

4. When $5$ times a number $x$ is added to $14$ , the result is $34$ . What number results when $3$ times $x$ is added to $8$ ?

$15$

$18$

$20$

$25$

5. In the xy-plane, the point $(1,9)$ lies on the graph of the function $f(x)=4x^2 -bx +7$ . What is the value of $b$ ?

6. If $\dfrac{5}{18} x -\dfrac{1}{3} x = -\dfrac{7}{36} + \dfrac{1}{12}$ , what is the value of $x$ ?