(being timed )
which statement correctly explains how andre could find the solution to the following system of linear equations using elimination?
8s-9t=15
7s-2t=12
a. multiply the first equation by –7 and the second equation by 8, and then subtract.
b. multiply the first equation by -7 and the second equation by 8, and then add.
c. multiply the first equation by 2 and the second equation by 9, and then add.
d. multiply the first equation by –2 and the second equation by 9, and then subtract.

Igure 1 and figure 2 are two congruent parallelograms drawn on a coordinate grid as shown below: 4 quadrant coordinate grid showing two parallelograms. figure 1 has vertices at negative 5, 2 and negative 3, 4 and negative 4, 7 and negative 6, 5. figure 2 has vertices at 5, negative 2 and 7, negative 4 and 6, negative 7 and 4, negative 5. which two transformations can map figure 1 onto figure 2? reflection across the y-axis, followed by reflection across x-axis reflection across the x-axis, followed by reflection across y-axis reflection across the x-axis, followed by translation 10 units right reflection across the y-axis, followed by translation 5 units down

Using only the digits 5, 6, 7, 8, how many different three digit numbers can be formed if no digit is repeated in a number?

An electrician cuts a 136 foot long piece of cable. one piece is 16 feet less than 3 times the length of the other piece. find the length of each piece