5 Questions (A)

A price increases from $£ 1680$ to $£ 2326.80$ . Calculate the percentage change

$38.5 %$

Evaluate $11 \times c o s 46 °$ correct to 2 d.p.

$7.64$

Work out $5 \times 10^{4} - 4 \times 10^{2}$

$4.96 \times 10^{4}$

Solve using the quadratic formula $7 x^{2} - 10 x - 6 = 0$

$x = 1.88 x = - 0.46$

Increase $£ 380$ by $55 %$

$£ 589.00$

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