4. A room has 20 seats - some are stools and some are chairs. Each stool has 3 legs and each chair has 4 legs. Altogether there are 68 legs.
How many
stools are there?​

Sara sells beaded necklaces she makes a profit of 4 dollars pn every neclace she sells which table represents the profit sara makes

Cherie measures and records the lengths and sizes of the same style of a sandal found at a shoe store. which equation can be used to determine the approximate shoe size, s, for a foot length of x inches? s = x – 2 s = 2x – 10 s = x + 6 s = 2x + 4

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?