\( 1 \times \) Teresa bought a 50 pound bag of flour for her bakery. She used 13.65 pounds of flour. How many pounds of flour are left in the bag?

4.Представьте произведе \( \left(4,6 \cdot 10^{4}\right) \cdot\left(2,5 \cdot 10^{-5}\right) \)

stion 1 ie has \( 35 \frac{3}{4} \) yards of red ribbon and \( 30 \frac{1}{3} \) yards of green ribbon. She cuts the red ribbon into strips tha yards long and the green ribbon into strips that are each \( 2 \frac{1}{6} \) yards long. How many more green strips ps does she have?

Simplify \( 6+3 \times 5 \) \( 20-7 \times 2 \) \( 4+5 \times 4 \)

If \( a=5.6(1 \mathrm{dp}), b=24.1(1 \mathrm{dp}), c=145 \) (3sf) \( \mathrm{d}=0.34(2 \mathrm{dp}) \) Calculate the upper \& lower bounds to \( 3 s f \). \( {c d^{3}}^{3} \)

8. A gym membership costs \( \$ 20 \) per month plus a one-time regstration fee. If you poid a total of \( \$ 180 \) after 6 months, how much was the regstration fee?