13. Mentally estimate the total cost of items that have the following prices: $1.85, $.98, $3.49, $9.78, and $6.18. Round off your answers to the nearest half-dollar.

Solve the system of equation 3y+2z=12 andy-z=9

What is 0.80 as a fraction

Check all the statements that are true: A. If a and b both divide c, then ab divides c2. B. If p and q are distinct primes, then p2q2 has exactly 11 positive divisors. C. If p and q are distinct primes, then p+q is prime as well. D.

Find the cube roots of 125 (cos 288° + i sin 288°).

Select linear or nonlinear to correctly classify each function. Function A. Linear B, Nonlinear 1.72=x3+y 2. y+1=5 (x-9) 3.7y + 2x = 12 4. 4y = 24

Multiplying an even number of negative numbers gives an answer that is choose from:

Daniel bought a new pair of shorts at the store when they were having a 5% off sale. If the regular price of the pair of shorts, If the regular price of the pair of shorts was $83, how much did Daniel pay with the discount?

Which expressions are equivalent to 3 (2x-4) + 4x-23 (2x-4) + 4x-2? Select each correct answer. A) 6x+4x-4-2 B) 14x-6 C) 3 (2x+4x) - (4+2) D) 10x-14 E) 6x-12+2 (x-2) F) 2 (5x-7)

A rectangular plot of farmland will be bounded on one side by a river and on the other three sides by a single-strand electric fence. With 1800 m of wire at your disposal, what is the largest area you can enclose, and what are its dimensions?

If 1 inch = 2.54 centimeters how many inches is equal to 254 centimeters