Write an algebraic expression for the quantity. Let x represent the unknown value.Seven times a number decreased by three-fourths of the same number.

A. 7(x - )
B.  - 7x
C. 7x - 
D. 7x - 


Answer: D

Mathematics

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Multiply.-1.659 × 100

A. -101.659 B. -1659 C. -1.65900 D. -165.9

Mathematics

Assume that x, y, and d are positive numbers. Use the properties of logarithms to write the expression  in terms of the logarithms of x and y. ? Please enter your coefficients as fractions.

What will be an ideal response?

Mathematics

Solve the problem.Suppose that the total annual consumption of salmon in a certain country is given by  and that the total annual consumption of tuna in this country is given by , where consumption is measured in millions of pounds and x is the number of years since 2010. Find the year in which consumption of salmon reaches consumption of tuna.

A. 2027 B. 2025 C. 2023 D. 2028

Mathematics

Solve the problem.A football team gained 35 yards on one play, lost 14 yards on another, and gained 38 yards on the last play of the first half. They had already gained 400 yards during the half. What was the total yardage gain for the first half?

A. 341 yards B. 459 yards C. 487 yards D. 473 yards

Mathematics