The owner of a bike shop sells unicycles and bicycles and keeps inventory by counting seats and wheels. one day, she counts 21 seats and 30 wheels. which equation in slope-intercept form shows that x bicycles and y unicycles together have a total of 30 wheels?

Translate the word phrase into a math expression. 15 fewer than the product of 4 and a number. (pls immediately)

Stefano accidentally dropped his sunglasses off the edge of a canyon as he was looking down. the height, h(t), in meters (as it relates to sea level), of the sunglasses after t seconds, is shown in the table. during its descent, the pair of sunglasses passed by a climber in the canyon 6 seconds after stefano dropped them. to the nearest meter, what is difference in elevation between stefano and the climber? 166 meters 176 meters 230 meters 240 meters its b.176 i took the test 166 is wrong and 176 is correct

Ineed with angles and the measure of them i have abc a is 65 and b is (3x-10) and c is (2x) find the value of x