Answer the following questions 15) Meena has two pieces of ribbon one is 120 cm long and other is 90 cm long. She wants cut them into pieces of equal length, with no ribbon left over. What is the greatest length th she can cut them?

Calcola la lunghezza del contorno della parte colorata della figura tenendo conto dei dati.

b) \( 10 x^{4}+6 x^{3}-37 x^{2}+36 x-12 \) entre \( 5 x^{2}-7 x+3 \) c) \( 8 x^{4}+6 x^{3}-23 x^{2}+2 x-3 \) entre \( 4 x^{2}-3 x+1 \)

Select the quadratic equation that has no real solution. \( 9 x^{2}-25 x+30=0 \) \( 9 x^{2}-30 x-25=0 \) \( 9 x^{2}-30 x+25=0 \) \( 9 x^{2}-25 x-30=0 \)

Evaluate the following expresaton using the propertics of logarthms. \( \log _{6}(6)+\log _{6}(36)+\log _{6}(216) \) 36 43 6 6 13 solve \( x \)

a. \( \frac{3}{4}+\frac{2}{7}: 4, \widehat{3}= \)