Hiroko is trying to find the value of d in 10d + 490 = 2,500. He starts by correctly rewriting the equation as 10(d+49)=10(250). how could this help Hiroko figure out the value of d?

I'll do the first one for you. it isn't very hard at all.on number one, you have (50 × 3), which equals 150, and (3 × 3), which equals 9. after you establish that, you add 150 and 9 together. so, (150 + 9) equals 159.this means that 53 × 3 = 159.

You have to give us options