Last year, dale mowed the lawn in 45 min. this year, it took dale 38 min to mow the lawn. what is the percent of decrease in mowing time? show your work.

Δabc is dilated by a scale factor of 3 with the origin as the center of dilation to form δa′b′c′. the slope of is -1.2. the length of is p units, the length of is q units, and the length of is r units. the slope of is . the length of is units.

Describe the relationship between the angles of similar triangles and the sides of similar triangles

Solve 2x2 + 8 = 0 by graphing the related function. there are two solutions: . there are no real number solutions. there are two solutions: 2 and -2