Evaluate an expression that involves any operation Precalculus

Evaluate \dfrac{3\times a + b}{c} with a=2.3, b=\dfrac25, c=\dfrac45

2.4

5.8

\dfrac{73}{8}

\dfrac27

Evaluate \left(\dfrac{3}{5}\right) \times \left(m + \dfrac{n^2}{4}\right) with m = 1.3 and n = 2

\dfrac{69}{50}

1.28

1.78

\dfrac{50}{69}

Evaluate \dfrac{\left(3 - \left(-4\right)x\right)^2}{y + 15} with x = 2 and y=7

\dfrac{22}{121}

\dfrac{67}{22}

\dfrac{25}{22}

\dfrac{11}{2}

Evaluate \dfrac{-4 \times v}{c^2} + 2.6 with v = -2 and c = 4

\dfrac{27}{12}

3.1

\dfrac{1}{2}

2.1

Evaluate \dfrac{6 \times s - t}{t + w} with s = -1, t = 2, and w = .75

\dfrac{-11}{72}

\dfrac{-72}{11}

\dfrac{-11}{32}

\dfrac{-32}{11}

Evaluate \dfrac{\left(5 - a\right)^2\times 4}{b + \dfrac{2}{3}} with a = 5.5 and b = \dfrac{1}{6}

\dfrac{-5}{6}

\dfrac{5}{6}

\dfrac{6}{5}

Evaluate \dfrac{2 - a \times b}{\left(-3\right)^2 - c + 0.5} with a = -2, b = 0.75, and c = 2.5

0.5

\dfrac{-3}{11}

\dfrac{-11}{3}