4.54 billion years<span>The "best" age for the Earth is based on the time required for the lead isotopes in four very old lead ores (galena) to have evolved from the composition of lead at the time the Solar System formed, as recorded in the Canyon Diablo iron meteorite. This "model lead age" is <span>4.54 billion years</span></span>
Answer:
The biggest and probably the most important engineering feat the Romans achieved was the construction of aqueducts. These aqueducts were used for two crucial purposes among others, water supply and water flow out.
Explanation:
- overgrazing
- over-cultivation
- fuel-wood clearing
- water extraction and unsustainable irrigation practices
- natural disasters
- climate change
Answer:
b. $129.04
Explanation:
Gross pay refers to salary before taxation. We were given Chuck's salary before tax to be $815.70
Gross pay = $815.70
<u>The following items were withheld:</u>
Federal tax = $56,
Social security tax = 6.2% of gross pay = 0.062 * 815.70 = $50.57
Medicare tax = 1.45% of gross pay = 0.0145 * 815.70 = $11.83
State tax = 19% of Federal tax = 0.19 * 56 = $10.64
To calculate how much of Chuck's salary will be withheld, we have the summation of all the items withheld
Total reduction = $ (56 + 50.57 + 11.83 + 10.64)
Total reduction = $<u>129.04</u>
<u>Hence, </u><u>$129.04</u><u> will be reduced from Chuck's gross pay</u>
