Solve the equation.0.15(x + 55) + 0.22(x + 85) = -24.85. (Round to the nearest whole number, if necessary.)
A. {-30}
B. {30}
C. {140}
D. {-140}
Answer: D
Mathematics
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An amount P, invested at a simple interest rate r, will grow to an amount A in t years, according to the formula A = P ( 1 + r t ). Suppose a man invested some money at 5.6%. If after 3 years, he had $6,424.00 on deposit, what amount did he originally invest? Round your answer to the nearest integer.
A. P = $5,350 B. P = $5,300 C. P = $5,500 D. P = $5,600
Mathematics
Write the number in standard notation.2.4800 x 104
A. 248,000 B. 99.2 C. 2480 D. 24,800
Mathematics
Evaluate the expression without a calculator.
-2
A. -16
B. 
C. 
D. 16
Mathematics
Factor the GCF from the polynomial.x(y + 5) + 8(y +5)
A. (y +5)(x + 8) B. (xy + 5x) + (8y + 40) C. 5y(x + 8) D. 8x(y +5)
Mathematics