For a certain value of k, the system
3a + 4b = 7,
6a + 4b = k - 4b
has infinitely many solutions (a, b). What is k?

Venita is sewing new curtains. the table below shows the relationship between the number of stitches in a row and the length ofthe row. sewingnumber of stitches length (cm)51 131532024306what is the relationship between the number of stitches and the length? othe number of stitches istimes the length. o. the number of stitches is 3 times the length.

Three numbers x, y, and z are in the ratio 2: 7: 8. if 12 is subtracted from y, then three numbers form a geometric sequence (in the order x, y–12, z). find x, y, and z. there are 2 sets.

At your job you're paid $50 per week plus $3 per sale at least how many saled do you need to make in order to have over $250