Using a 3x3 system, determine three numbers a, b, and c that satisfy the following conditions:
• the sum of the three numbers is 2.
• the sum of the first number, 5 times the second number, and 5 times the third number is -10.
• the sum of the first number, double the second number, and triple the third number is -3.

Use three variables a, b, c to write three equations. a = ( ), b = ( ) c = ( )

Estimate the product. round the first factor to the nearest whole number, round the second factor to the nearest ten, and then multiply. 3 8/9 × 96

On the first of each month, shelly runs a 5k race. she keeps track of her times to track her progress. her time in minutes is recorded in the table: jan 40.55 july 35.38 feb 41.51 aug 37.48 mar 42.01 sept 40.87 apr 38.76 oct 48.32 may 36.32 nov 41.59 june 34.28 dec 42.71 determine the difference between the mean of the data, including the outlier and excluding the outlier. round to the hundredths place. 39.98 39.22 0.76 1.21

In which quadrant does the point lie? write the coordinates of the point. a. quadrant ii; (–2, –4) b. quadrant iii; (2, 4) c. quadrant iii; (–2, –4) d. quadrant iv; (–4, –2)