Which expression is equivalent to 21d + 18 A) 21(d + 18)
B) 21( d + 6)
C) 3(7d + 6)
D) 3(7d + 18)​

Zoe placed colored blocks on a scale in science class. each block weighed 0.8 ounces. the total weight of all the colored blocks was 12.8 ounces. how many blocks did zoe place on the scale? write and solve an equation to find the answer.

Data are collected to see how many ice-cream cones are sold at a ballpark in a week. day 1 is sunday and day 7 is the following saturday. use the data from the table to create a scatter plot.

What is the slope of the equation y =