Evaluate the algebraic expressions for the given values of each variable.
r + s2 at r = 4, s = 1
i think it's 6 ,am i correct?

Write the expression 7x^3-28xy^2 as the product of 3 factors

The probability that an adult possesses a credit card is .70. a researcher selects two adults at random. by assuming the independence, the probability that the first adult possesses a credit card and the second adult does not possess a credit card is:

The map shows the location of the airport and a warehouse in a city. though not displayed on the map, there is also a factory 112 miles due north of the warehouse.a truck traveled from the warehouse to the airport and then to the factory. what is the total number of miles the truck traveled?