R/s^5t^r2st-2/r^3
hope this helps
Y=1.47x
X is the number of erasers bought
Take 89 minus 11 to find twice of Jerry's number . To find Jerry's number divide the answer by two which is 89-11 =78. 78 divide by 2 is 39 . To find Mary's number add 39 and 11 .
Hence Mary has 50
Jerry has 39
Answer:
a
Step-by-step explanation: