Sam pulls his sister in a wagon on a flat sidewalk. Which is the source of energy
that moves the wagon?
A)
B
©
chemical energy in Sam's muscles
kinetic energy from the rolling
wheels
potential energy from the ground
below
gravitational energy pulling on the
wagon

the answer i believe is 27 units.

step-by-step explanation:

answer: that means that there is to perpendicular

step-by-step explanation:

• before the lesson, students attempt the assessment task individually. you then review students’

solutions and formulate questions that will them improve their work.

• during the lesson, students work collaboratively in pairs or threes, plotting graphs, completing

tables of values and deducing equations. then, based on the number of common solutions,

students link these representations.

• in a follow-up lesson, students receive your comments on the assessment task and use these to

attempt the similar task, approaching it with insights gained from the lesson.

4: 9 is the basic ratio for 36: 81