Verify as an identity: cos (90°+x) = - sinx

I'm not sure how to go about this question

How do you get 604.8 divided by 36

9. You sell bracelets for $2 each and necklaces for $3 each at a local flea market. You collect $95, selling a total of 37 jewelry items. How many of each type of jewelry did you sell?

Wawa pays $100 for 5 hours work. 7-11 pays $200 for 9 hours work. Which job should u take?

Ana packed 5 dresses, 2 pairs of pants, and 3 blouses. How many distinct outfits can she wear?

How many times does eight go into 64p. s. i am bad at maths?

You purchase a $220 online ticket you have a discount code to receive 10% off. There is a 10.5% service charge added to the total. How much do you pay for your ticket?

A number that is less the 85 and has 26 and 6 as factor

If bob went 14.6 miles away form home. then, bob ran 9.8 miles towards home then 5.3 mile away from is home. how far is bob away from home

Write a number story That can be modeled by the number sentence 3:7

Jeff is meeting billy at the park to play basketball at 2:30 p. m on the way to the park Jeff took 5 minutes stop and talk to his neighbor then it took him 13 more minutes to get to the park. how long did it take Jeff to get to the park