Solve for x using an equivalent exponential expression.The formula S = A
models the value of a retirement account, where 
number of dollars added to the retirement account each year, 
annual interest rate, and 
value of the retirement account after t years. If the interest rate is 11%, how much will the account be worth after 40 years if
$1,000 is added each year? Round to the nearest whole number.
A. $72,142
B. $646,827
C. $2,665,036
D. $41,000
Answer: B
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The following figure has perimeter, circumference, or area as indicated. Find the value of x. Use 3.14 as an approximation for ?.A = 49
A. 3.5 B. 28 C. 1.75 D. 7
Solve the problem.Trina and Monica use a metal alloy that is 18% copper to make jewelry. How many ounces of a 13% alloy must be mixed with a 25% alloy to form 120 ounces of the desired alloy?
A. 72 oz B. 50 oz C. 55 oz D. 70 oz
Use the rules for exponents to rewrite the expression and then evaluate the new expression. 42 ? 45
A. 262,144 B. 16,777,216 C. 16,384 D. 1,048,576
Solve the problem.If a projectile is fired with an initial velocity of v = 650 feet per second at an angle of 
with the horizontal, it will follow a parabolic path described by 
Graph the path of the projectile and determine to the nearest foot the maximum height reached by the projectile.
A. 12,811 ft B. 6405 ft C. 2502 ft D. 5004 ft