Which set of lengths could be the side lengths of a right triangle?

A. 7 in., 7 in., 10 in.
B. 4.5 ft, 6 ft, 7.5 ft
C. 10 m, 11 m, 15 m
D. 8 cm, 10 cm, 13 cm

Given a circle with measures of (c, d, and r) and a circle with measures of (c', d', and r'), what is d if c c' = 12 and d' = 0.50? a) 3 b) 6 c) 12 d) 24

What is the name used to describe a graph where for some value of x, there exists 2 or more different values of y?

At the beginning of 1974/75,2 years a man invested #2000 in a bank at 12.5% compound interest, if it degree #650 at the end of each two years to pay his son's school fees, after payment of interest to pay his son's school fees, how much did he have left at the beginning of the 1978/79 school year?