a is the set of integers greater than or equal to -8 and less than or equal to - 1
b={-21, 20, 21, 25, 29}
(a) find the cardinalities of a and b.
n (a) =
n(b) =

Step-by-step explanation:

The cardinality is the number of elements in the set.

We need to list the element of the first set A, the set of integers greater than or equal to -8 and less than or equal to - 1

A={-8,-7,-6,-5,-4,-3,-2,-1}

The number of elements in this set is 8.

The second set is B={-21, 20, 21, 25, 29}.

The number of elements in this set is 5

use substitution to solve each system of equations. y = x + 5 3x + y = 25 62/87,21 y = x + 5 3x + y = 25 substitute x + 5 for y in the second equation. substitute the solution for x into either equation to find y. the solution is (5, 10)

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step-by-step explanation:

answer: there are 453.592 grams in a pound.