Answer:
Step-by-step explanation:
a=-7
r=21/-7=-3

Answer:
90 clockwise
Step-by-step explanation:
rotate it by 90 degrees. it lines up
Answer:
I need help with this too
Step-by-step explanation:
(14 1/2)/(1 1/4) change both to improper fractions
(29/2)/(5/4) invert second function (or the denominator fraction) and multiply.
(29/2)*(4/5) multiply...
58/5 change improper fraction back to mixed fraction
11 3/5 or a decimal 11.6