What is 7.39 divided by 0.72 round the quotient to the nearest hundreth

Afarm that has 4 x 10^2 acres has 1.2 x 10^5 cattle. what is the average number of cattle per acre? write the answer in scientific notation. answere asap

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41

Given: circle o, cd is diameter, chord ab || cd. arc ab = 74°, find arc ca.