Given the expression 5a2b – 13ab + 7a3 – 4b, do the following as instructed below: write the polynomial in descending order. classify the polynomial by the number of terms. state the degree of the polynomial.

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

Aball is dropped from a height of 10m above the ground. it bounce to 90% of its previous height on each bounce. what is the approximate height that the ball bounce to the fourth bounce?

Afactory buys 10% of its components from suppliers b and the rest from supplier c. it is known that 6% of the components it buys are faulty. of the components brought from suppliers a,9% are faulty and of the components bought from suppliers b, 3% are faulty. find the percentage of components bought from supplier c that are faulty.