Find the loss percentage for an article with the selling price 700 and cost price 400

Don francisco chicos, voy a hablar con la señora perales, en un momento estoy con (you, javier sí, don efe, no se preocupe por (us). inés ¡qué rico está el pastel! a (me) me encantan los pasteles. javier, ¿quieres compartir un pedazo (slice) (with me)? javier ¡claro! para (me) el chocolate es lo más delicioso. maite pero no se lo álex, quiero compartir el último (last) pedazo (with you, sing. álex mmm, está bien; sólo por (you, sing. fam.) hago este sacrificio. maite toma, álex, este pedazo es especial para (you, sing. javier oh no. mira inés; hay más miel (honey) en (them, m.) que en cien pasteles.

Okay so i'm taking an online spanish course (penn foster), and in the study guide, you have to create a bunch of sentences with words you've learned so far. translating, reading, and those kinds of things are fairly easy, but when it comes to making my own sentences, my brain just kinda waltz's away. anyone got any tips?

The exchange rate is 156 pesos for 1 us dollar. it costs 10,218 pesos to check an extra piece of luggage on the plane. you have $65 us dollars. which of the scenarios below best reflects your ability to check your extra piece of luggage? a. whew! you have just enough! b. oh no, you will have to leave your extra piece of luggage behind! c. you have enough to check your extra piece of luggage and buy a coffee for the flight. d. if you can scramble to find some spare change in your pocket, you can check your extra piece of luggage.