Solve the problem.A certain radioactive isotope decays at a rate of 2% per 100 years. If t represents time in years and y represents the amount of the isotope left then the equation for the situation is 
In how many years will there be 93% of the isotope left?
A. 253 years
B. 350 years
C. 363 years
D. 700 years
Answer: C
Mathematics
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Evaluate the integral.
A. 
B. 1170
C. 
D. 234
Mathematics
Use the rules of exponents to simplify the expression. Use positive exponents to write the answer.
-4
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.A bakery sells three types of cakes, each requiring the amount of ingredients shown.Cake ICake IICake III
To fill its orders for these cakes, the bakery used 72 cups of flour, 48 cups of sugar, and 55 eggs. How many cakes of each type were made?
A. 13 Cake I; 8 Cake II; 7 Cake III B. 37 Cake I; 8 Cake II; 12 Cake III C. 15 Cake I; 8 Cake II; 7 Cake III D. 7 Cake I; 8 Cake II; 13 Cake III
Mathematics
Solve the equation.7x - 2 = 6x + 1
A. 
B. 
C. 
D. 
Mathematics