For his long distance phone service, Ahmad pays a $3 monthly fee plus 11 cents per minute. Last month, Ahmad's long distance bill was $24.78. For how many minutes was Ahmad billed?
minutes

Find the required measurements of the following trapezoids. a = 8 cm b = 16 cm h = 10 cm

Arianna is buying plants for her garden. she buys 15 flowering plants for $96. pink flowering plants sell for $8, and purple flowering plants sell for $5. how many pink flowering plants did arianna buy? i figured out the answer! the answer is 7. 8x +5y = 96 plug in 7 for x 8 (7) + 5y = 96 56 + 5y = 96 subtract 56 from both sides 5y/y = 40/5 y = 8 she bought 7 pink and 8 purple plants

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.