Answer:
1. 79,210
2. 6,231
3. 23.4
Step-by-step explanation:
1. 7.921 * 10^4
10 ^ 4 = 10000
move the decimal point four places to the right
= 79,210
2. 6.231 * 10^3
10 ^ 3 is 1000
move the decimal point three places to the right
6,231
3. 0.234 * 10^2
10 ^ 2 is 100
move the decimal two places to the right
23.4
450
here is a fast way:
1- 75% = 75/100 = 3/4
2- 600 × (3/4) = 450
X = -2
7x + 10 = 2x
5x = -10
x = -2
Hope this helped!! Have a blessed day!!!
