Answer:
False
Step-by-step explanation:
-(-21) is positive 21 since there are 2 negative signs, and -21 is negative, therefore they are not the same.
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A prism is a solid figure that has two parallel congruent sides that are called bases that are connected by the lateral faces that are parallelograms.
Answer:
Understanding basic business math is necessary for profitable operations and accurate record keeping. Knowing how to add, subtract, multiply, divide, round and use percentages and fractions is the minimum you need to price your product and meet your budget.
Answer:
3, -4
Step-by-step explanation:
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