For the given number a. find it’s additive inverse and b. find its absolute value. 7.87 a. the additive inverse of 7.87 is ? ?

a) -7,87

b) 7.87

Step-by-step explanation:

The sum of a real number and its additive inverse gives the identity element of addition which is zero.

Let x be the additive inverse of 7.87 then

This implies that:

The absolute of a real number is its distance from zero on the real number line.

$9.89

step-by-step explanation:

9.90 = p x .06 x .25 (3/12 changed to a decimal)

9.90 = p x 0.015

9.90 - 0.015 = p

9.89 = p