Mariah is making bouquets of flowers to sell. she needs 15 inches of ribbon for each bouquet. how many yards of ribbon does she need to make 7 bouquets

She will need 105 in of ribbon because 15 times 7 equals 105.

1 yard = 36 inches

for 1 bouquet = 15 inches
for 7 bouquet = 15 × 7 = 105 inches

number of yards to be known = X
so 1 yard = 36 inches
X = 105 inches
now cross multiply 36 × X = 105 × 1
X = 105 / 36 = 2.92 yards

HOPE.IT HELPED !!!