5x7 + 5 x 3 using distributive property

Jenisey has $24 to spend on seven pencils. after buying them she had $10. how much did each pencil cost.?

Given ab and cb are tangents of p, and m =10°. what is the measure of abp?

Find the perimeter of the triangle with vertices  d(3, 4),  e(8, 7), and  f(5, 9). do not round before calculating the perimeter. after calculating the perimeter, round your answer to the nearest tenth.