Solve the problem.The half-life of radium is 1690 years. If 150 grams is present now, how long (to the nearest year) till only 100 grams are present?
Fill in the blank(s) with the appropriate word(s).
989 years
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Write the number in ordinary notation.7.8 × 106
A. 78,000,000 B. 7,800,000 C. 780,000 D. 468
The problem tells how many units and in what direction the graph of the given equation is to be shifted. Give an equation for the shifted graph. Then sketch the original graph with a dashed line and the shifted graph with a solid line.y = 
Down 2, right 2
A. y + 2 = 
B. y - 2 = 
C. y + 2 = 
D. y - 2 = 
Provide an appropriate response.Through a mix-up on the production line, 5 defective televisions were shipped out with 25 good ones. What is the probability that a customer will choose a defective one at random?
Fill in the blank(s) with the appropriate word(s).
Solve.Jeffery has two packages. One weighs 1
ounces, and the other weighs 
ounces. What is the total weight of the two packages?
A. 1
oz
B. 
oz
C. 
oz
D. 2
oz